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Finding the Fourth Proportional to 69,987,121.40, 97,755,221.80 and 69,987,121.40

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Solution

The fourth proportional to 69,987,121.40, 97,755,221.80 and 69,987,121.40 is: 97,755,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,987,121.40 : 97,755,221.80 = 69,987,121.40 : x
  2. Step 2: Convert to fraction form
    69,987,121.40/97,755,221.80 = 69,987,121.40/x
  3. Step 3: Cross multiply
    69,987,121.40x = 97,755,221.80 × 69,987,121.40
  4. Step 4: Simplify right side
    69,987,121.40x = 6,841,606,575,600,527
  5. Step 5: Solve for x
    x = 6,841,606,575,600,527/69,987,121.40
  6. Step 6: Final answer
    x = 97,755,221.80

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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.