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Finding the Fourth Proportional to 201,775,073.70, 302,662,610.55 and 99,738,401.70

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Solution

The fourth proportional to 201,775,073.70, 302,662,610.55 and 99,738,401.70 is: 149,607,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,775,073.70 : 302,662,610.55 = 99,738,401.70 : x
  2. Step 2: Convert to fraction form
    201,775,073.70/302,662,610.55 = 99,738,401.70/x
  3. Step 3: Cross multiply
    201,775,073.70x = 302,662,610.55 × 99,738,401.70
  4. Step 4: Simplify right side
    201,775,073.70x = 30,187,085,030,606,560
  5. Step 5: Solve for x
    x = 30,187,085,030,606,560/201,775,073.70
  6. Step 6: Final answer
    x = 149,607,602.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.