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Finding the Fourth Proportional to 76,562.97, 105,641.43 and 44,725.71

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Solution

The fourth proportional to 76,562.97, 105,641.43 and 44,725.71 is: 61,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,562.97 : 105,641.43 = 44,725.71 : x
  2. Step 2: Convert to fraction form
    76,562.97/105,641.43 = 44,725.71/x
  3. Step 3: Cross multiply
    76,562.97x = 105,641.43 × 44,725.71
  4. Step 4: Simplify right side
    76,562.97x = 4,724,887,962.17
  5. Step 5: Solve for x
    x = 4,724,887,962.17/76,562.97
  6. Step 6: Final answer
    x = 61,712.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.