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Finding the Fourth Proportional to 108,557.70, 162,837.42 and 42,005.44

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Solution

The fourth proportional to 108,557.70, 162,837.42 and 42,005.44 is: 63,008.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,557.70 : 162,837.42 = 42,005.44 : x
  2. Step 2: Convert to fraction form
    108,557.70/162,837.42 = 42,005.44/x
  3. Step 3: Cross multiply
    108,557.70x = 162,837.42 × 42,005.44
  4. Step 4: Simplify right side
    108,557.70x = 6,840,057,475.56
  5. Step 5: Solve for x
    x = 6,840,057,475.56/108,557.70
  6. Step 6: Final answer
    x = 63,008.50

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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.