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Finding the Fourth Proportional to 70,543.92, 97,343.52 and 42,248.88

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Solution

The fourth proportional to 70,543.92, 97,343.52 and 42,248.88 is: 58,299.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,543.92 : 97,343.52 = 42,248.88 : x
  2. Step 2: Convert to fraction form
    70,543.92/97,343.52 = 42,248.88/x
  3. Step 3: Cross multiply
    70,543.92x = 97,343.52 × 42,248.88
  4. Step 4: Simplify right side
    70,543.92x = 4,112,654,695.26
  5. Step 5: Solve for x
    x = 4,112,654,695.26/70,543.92
  6. Step 6: Final answer
    x = 58,299.21

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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.