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Finding the Fourth Proportional to 185,812.64, 278,753.52 and 61,162.40

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Solution

The fourth proportional to 185,812.64, 278,753.52 and 61,162.40 is: 91,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,812.64 : 278,753.52 = 61,162.40 : x
  2. Step 2: Convert to fraction form
    185,812.64/278,753.52 = 61,162.40/x
  3. Step 3: Cross multiply
    185,812.64x = 278,753.52 × 61,162.40
  4. Step 4: Simplify right side
    185,812.64x = 17,049,234,291.65
  5. Step 5: Solve for x
    x = 17,049,234,291.65/185,812.64
  6. Step 6: Final answer
    x = 91,754.98

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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.