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Finding the Fourth Proportional to 88,374.66, 121,916.70 and 52,544.28

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Solution

The fourth proportional to 88,374.66, 121,916.70 and 52,544.28 is: 72,487.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,374.66 : 121,916.70 = 52,544.28 : x
  2. Step 2: Convert to fraction form
    88,374.66/121,916.70 = 52,544.28/x
  3. Step 3: Cross multiply
    88,374.66x = 121,916.70 × 52,544.28
  4. Step 4: Simplify right side
    88,374.66x = 6,406,025,221.48
  5. Step 5: Solve for x
    x = 6,406,025,221.48/88,374.66
  6. Step 6: Final answer
    x = 72,487.13

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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.