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Finding the Fourth Proportional to 73,758,910.40, 103,413,640 and 73,758,910.40

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Solution

The fourth proportional to 73,758,910.40, 103,413,640 and 73,758,910.40 is: 103,413,640

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,758,910.40 : 103,413,640 = 73,758,910.40 : x
  2. Step 2: Convert to fraction form
    73,758,910.40/103,413,640 = 73,758,910.40/x
  3. Step 3: Cross multiply
    73,758,910.40x = 103,413,640 × 73,758,910.40
  4. Step 4: Simplify right side
    73,758,910.40x = 7,627,677,406,897,857
  5. Step 5: Solve for x
    x = 7,627,677,406,897,857/73,758,910.40
  6. Step 6: Final answer
    x = 103,413,640

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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.