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Finding the Fourth Proportional to 65,199,127.80, 97,798,691.70 and 19,755,017.40

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Solution

The fourth proportional to 65,199,127.80, 97,798,691.70 and 19,755,017.40 is: 29,632,526.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,199,127.80 : 97,798,691.70 = 19,755,017.40 : x
  2. Step 2: Convert to fraction form
    65,199,127.80/97,798,691.70 = 19,755,017.40/x
  3. Step 3: Cross multiply
    65,199,127.80x = 97,798,691.70 × 19,755,017.40
  4. Step 4: Simplify right side
    65,199,127.80x = 1,932,014,856,230,735.50
  5. Step 5: Solve for x
    x = 1,932,014,856,230,735.50/65,199,127.80
  6. Step 6: Final answer
    x = 29,632,526.10

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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.