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Finding the Fourth Proportional to 95,705.96, 143,591.13 and 42,390.54

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Solution

The fourth proportional to 95,705.96, 143,591.13 and 42,390.54 is: 63,600.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,705.96 : 143,591.13 = 42,390.54 : x
  2. Step 2: Convert to fraction form
    95,705.96/143,591.13 = 42,390.54/x
  3. Step 3: Cross multiply
    95,705.96x = 143,591.13 × 42,390.54
  4. Step 4: Simplify right side
    95,705.96x = 6,086,905,539.91
  5. Step 5: Solve for x
    x = 6,086,905,539.91/95,705.96
  6. Step 6: Final answer
    x = 63,600.07

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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.