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Finding the Fourth Proportional to 93,125.52, 128,517.42 and 54,886.68

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Solution

The fourth proportional to 93,125.52, 128,517.42 and 54,886.68 is: 75,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,125.52 : 128,517.42 = 54,886.68 : x
  2. Step 2: Convert to fraction form
    93,125.52/128,517.42 = 54,886.68/x
  3. Step 3: Cross multiply
    93,125.52x = 128,517.42 × 54,886.68
  4. Step 4: Simplify right side
    93,125.52x = 7,053,894,505.97
  5. Step 5: Solve for x
    x = 7,053,894,505.97/93,125.52
  6. Step 6: Final answer
    x = 75,746.10

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1.5x scale

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.