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Finding the Fourth Proportional to 95,135.79, 142,705.08 and 45,221.01

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Solution

The fourth proportional to 95,135.79, 142,705.08 and 45,221.01 is: 67,832.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,135.79 : 142,705.08 = 45,221.01 : x
  2. Step 2: Convert to fraction form
    95,135.79/142,705.08 = 45,221.01/x
  3. Step 3: Cross multiply
    95,135.79x = 142,705.08 × 45,221.01
  4. Step 4: Simplify right side
    95,135.79x = 6,453,267,849.73
  5. Step 5: Solve for x
    x = 6,453,267,849.73/95,135.79
  6. Step 6: Final answer
    x = 67,832.18

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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.