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Finding the Fourth Proportional to 73,159.76, 109,689.72 and 35,188.98

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Solution

The fourth proportional to 73,159.76, 109,689.72 and 35,188.98 is: 52,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,159.76 : 109,689.72 = 35,188.98 : x
  2. Step 2: Convert to fraction form
    73,159.76/109,689.72 = 35,188.98/x
  3. Step 3: Cross multiply
    73,159.76x = 109,689.72 × 35,188.98
  4. Step 4: Simplify right side
    73,159.76x = 3,859,869,363.29
  5. Step 5: Solve for x
    x = 3,859,869,363.29/73,159.76
  6. Step 6: Final answer
    x = 52,759.46

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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.