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Finding the Fourth Proportional to 93,248.16, 128,691.75 and 56,947.59

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Solution

The fourth proportional to 93,248.16, 128,691.75 and 56,947.59 is: 78,593.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,248.16 : 128,691.75 = 56,947.59 : x
  2. Step 2: Convert to fraction form
    93,248.16/128,691.75 = 56,947.59/x
  3. Step 3: Cross multiply
    93,248.16x = 128,691.75 × 56,947.59
  4. Step 4: Simplify right side
    93,248.16x = 7,328,685,015.38
  5. Step 5: Solve for x
    x = 7,328,685,015.38/93,248.16
  6. Step 6: Final answer
    x = 78,593.35

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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.