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Finding the Fourth Proportional to 143,950.88, 215,925.96 and 38,769.96

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Solution

The fourth proportional to 143,950.88, 215,925.96 and 38,769.96 is: 58,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,950.88 : 215,925.96 = 38,769.96 : x
  2. Step 2: Convert to fraction form
    143,950.88/215,925.96 = 38,769.96/x
  3. Step 3: Cross multiply
    143,950.88x = 215,925.96 × 38,769.96
  4. Step 4: Simplify right side
    143,950.88x = 8,371,440,832.16
  5. Step 5: Solve for x
    x = 8,371,440,832.16/143,950.88
  6. Step 6: Final answer
    x = 58,154.84

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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.