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Finding the Fourth Proportional to 105,487.52, 158,214.26 and 38,958.98

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Solution

The fourth proportional to 105,487.52, 158,214.26 and 38,958.98 is: 58,432.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,487.52 : 158,214.26 = 38,958.98 : x
  2. Step 2: Convert to fraction form
    105,487.52/158,214.26 = 38,958.98/x
  3. Step 3: Cross multiply
    105,487.52x = 158,214.26 × 38,958.98
  4. Step 4: Simplify right side
    105,487.52x = 6,163,865,497.38
  5. Step 5: Solve for x
    x = 6,163,865,497.38/105,487.52
  6. Step 6: Final answer
    x = 58,432.18

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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.