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Finding the Fourth Proportional to 52,606.59, 78,915.15 and 15,167.58

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Solution

The fourth proportional to 52,606.59, 78,915.15 and 15,167.58 is: 22,752.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,606.59 : 78,915.15 = 15,167.58 : x
  2. Step 2: Convert to fraction form
    52,606.59/78,915.15 = 15,167.58/x
  3. Step 3: Cross multiply
    52,606.59x = 78,915.15 × 15,167.58
  4. Step 4: Simplify right side
    52,606.59x = 1,196,951,850.84
  5. Step 5: Solve for x
    x = 1,196,951,850.84/52,606.59
  6. Step 6: Final answer
    x = 22,752.89

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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.