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Finding the Fourth Proportional to 153,043.92, 229,583.34 and 40,728.76

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Solution

The fourth proportional to 153,043.92, 229,583.34 and 40,728.76 is: 61,097.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,043.92 : 229,583.34 = 40,728.76 : x
  2. Step 2: Convert to fraction form
    153,043.92/229,583.34 = 40,728.76/x
  3. Step 3: Cross multiply
    153,043.92x = 229,583.34 × 40,728.76
  4. Step 4: Simplify right side
    153,043.92x = 9,350,644,754.86
  5. Step 5: Solve for x
    x = 9,350,644,754.86/153,043.92
  6. Step 6: Final answer
    x = 61,097.79

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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.