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Finding the Fourth Proportional to 72,432.60, 108,672.57 and 34,996.98

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Solution

The fourth proportional to 72,432.60, 108,672.57 and 34,996.98 is: 52,506.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,432.60 : 108,672.57 = 34,996.98 : x
  2. Step 2: Convert to fraction form
    72,432.60/108,672.57 = 34,996.98/x
  3. Step 3: Cross multiply
    72,432.60x = 108,672.57 × 34,996.98
  4. Step 4: Simplify right side
    72,432.60x = 3,803,211,758.84
  5. Step 5: Solve for x
    x = 3,803,211,758.84/72,432.60
  6. Step 6: Final answer
    x = 52,506.91

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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.