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Finding the Fourth Proportional to 93,952.32, 129,654.72 and 56,217.28

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Solution

The fourth proportional to 93,952.32, 129,654.72 and 56,217.28 is: 77,580.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,952.32 : 129,654.72 = 56,217.28 : x
  2. Step 2: Convert to fraction form
    93,952.32/129,654.72 = 56,217.28/x
  3. Step 3: Cross multiply
    93,952.32x = 129,654.72 × 56,217.28
  4. Step 4: Simplify right side
    93,952.32x = 7,288,835,697.56
  5. Step 5: Solve for x
    x = 7,288,835,697.56/93,952.32
  6. Step 6: Final answer
    x = 77,580.16

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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.