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Finding the Fourth Proportional to 143,505.01, 215,305.92 and 63,531.93

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Solution

The fourth proportional to 143,505.01, 215,305.92 and 63,531.93 is: 95,319.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,505.01 : 215,305.92 = 63,531.93 : x
  2. Step 2: Convert to fraction form
    143,505.01/215,305.92 = 63,531.93/x
  3. Step 3: Cross multiply
    143,505.01x = 215,305.92 × 63,531.93
  4. Step 4: Simplify right side
    143,505.01x = 13,678,801,445.42
  5. Step 5: Solve for x
    x = 13,678,801,445.42/143,505.01
  6. Step 6: Final answer
    x = 95,319.33

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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.