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Finding the Fourth Proportional to 92,501.60, 138,769.70 and 29,304.75

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Solution

The fourth proportional to 92,501.60, 138,769.70 and 29,304.75 is: 43,962.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,501.60 : 138,769.70 = 29,304.75 : x
  2. Step 2: Convert to fraction form
    92,501.60/138,769.70 = 29,304.75/x
  3. Step 3: Cross multiply
    92,501.60x = 138,769.70 × 29,304.75
  4. Step 4: Simplify right side
    92,501.60x = 4,066,611,366.08
  5. Step 5: Solve for x
    x = 4,066,611,366.08/92,501.60
  6. Step 6: Final answer
    x = 43,962.61

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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.