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Finding the Fourth Proportional to 92,677.56, 138,995.02 and 55,248.20

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Solution

The fourth proportional to 92,677.56, 138,995.02 and 55,248.20 is: 82,859.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,677.56 : 138,995.02 = 55,248.20 : x
  2. Step 2: Convert to fraction form
    92,677.56/138,995.02 = 55,248.20/x
  3. Step 3: Cross multiply
    92,677.56x = 138,995.02 × 55,248.20
  4. Step 4: Simplify right side
    92,677.56x = 7,679,224,663.96
  5. Step 5: Solve for x
    x = 7,679,224,663.96/92,677.56
  6. Step 6: Final answer
    x = 82,859.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.