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Finding the Fourth Proportional to 86,934,266.90, 130,401,400.35 and 86,934,266.90

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Solution

The fourth proportional to 86,934,266.90, 130,401,400.35 and 86,934,266.90 is: 130,401,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,934,266.90 : 130,401,400.35 = 86,934,266.90 : x
  2. Step 2: Convert to fraction form
    86,934,266.90/130,401,400.35 = 86,934,266.90/x
  3. Step 3: Cross multiply
    86,934,266.90x = 130,401,400.35 × 86,934,266.90
  4. Step 4: Simplify right side
    86,934,266.90x = 11,336,350,142,160,654
  5. Step 5: Solve for x
    x = 11,336,350,142,160,654/86,934,266.90
  6. Step 6: Final answer
    x = 130,401,400.35

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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.