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Finding the Fourth Proportional to 108,557.76, 162,823.68 and 29,678.88

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Solution

The fourth proportional to 108,557.76, 162,823.68 and 29,678.88 is: 44,514.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,557.76 : 162,823.68 = 29,678.88 : x
  2. Step 2: Convert to fraction form
    108,557.76/162,823.68 = 29,678.88/x
  3. Step 3: Cross multiply
    108,557.76x = 162,823.68 × 29,678.88
  4. Step 4: Simplify right side
    108,557.76x = 4,832,424,459.88
  5. Step 5: Solve for x
    x = 4,832,424,459.88/108,557.76
  6. Step 6: Final answer
    x = 44,514.78

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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.