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Finding the Fourth Proportional to 908,134,401.45, 1,272,249,096.45 and 908,134,401.45

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Solution

The fourth proportional to 908,134,401.45, 1,272,249,096.45 and 908,134,401.45 is: 1,272,249,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,134,401.45 : 1,272,249,096.45 = 908,134,401.45 : x
  2. Step 2: Convert to fraction form
    908,134,401.45/1,272,249,096.45 = 908,134,401.45/x
  3. Step 3: Cross multiply
    908,134,401.45x = 1,272,249,096.45 × 908,134,401.45
  4. Step 4: Simplify right side
    908,134,401.45x = 1,155,373,171,699,924,224
  5. Step 5: Solve for x
    x = 1,155,373,171,699,924,224/908,134,401.45
  6. Step 6: Final answer
    x = 1,272,249,096.45

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.