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Finding the Fourth Proportional to 55,404,003.65, 77,693,150.95 and 55,404,003.65

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Solution

The fourth proportional to 55,404,003.65, 77,693,150.95 and 55,404,003.65 is: 77,693,150.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,404,003.65 : 77,693,150.95 = 55,404,003.65 : x
  2. Step 2: Convert to fraction form
    55,404,003.65/77,693,150.95 = 55,404,003.65/x
  3. Step 3: Cross multiply
    55,404,003.65x = 77,693,150.95 × 55,404,003.65
  4. Step 4: Simplify right side
    55,404,003.65x = 4,304,511,618,813,801
  5. Step 5: Solve for x
    x = 4,304,511,618,813,801/55,404,003.65
  6. Step 6: Final answer
    x = 77,693,150.95

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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.