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Finding the Fourth Proportional to 71,763,890.40, 107,572,352.40 and 35,316,223.20

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Solution

The fourth proportional to 71,763,890.40, 107,572,352.40 and 35,316,223.20 is: 52,938,172.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,763,890.40 : 107,572,352.40 = 35,316,223.20 : x
  2. Step 2: Convert to fraction form
    71,763,890.40/107,572,352.40 = 35,316,223.20/x
  3. Step 3: Cross multiply
    71,763,890.40x = 107,572,352.40 × 35,316,223.20
  4. Step 4: Simplify right side
    71,763,890.40x = 3,799,049,207,507,456
  5. Step 5: Solve for x
    x = 3,799,049,207,507,456/71,763,890.40
  6. Step 6: Final answer
    x = 52,938,172.48

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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.