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Finding the Fourth Proportional to 104,437.98, 144,125.91 and 56,691.42

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Solution

The fourth proportional to 104,437.98, 144,125.91 and 56,691.42 is: 78,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,437.98 : 144,125.91 = 56,691.42 : x
  2. Step 2: Convert to fraction form
    104,437.98/144,125.91 = 56,691.42/x
  3. Step 3: Cross multiply
    104,437.98x = 144,125.91 × 56,691.42
  4. Step 4: Simplify right side
    104,437.98x = 8,170,702,496.69
  5. Step 5: Solve for x
    x = 8,170,702,496.69/104,437.98
  6. Step 6: Final answer
    x = 78,234.97

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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.