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Finding the Fourth Proportional to 185,500.64, 278,063.13 and 73,260

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Solution

The fourth proportional to 185,500.64, 278,063.13 and 73,260 is: 109,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,500.64 : 278,063.13 = 73,260 : x
  2. Step 2: Convert to fraction form
    185,500.64/278,063.13 = 73,260/x
  3. Step 3: Cross multiply
    185,500.64x = 278,063.13 × 73,260
  4. Step 4: Simplify right side
    185,500.64x = 20,370,904,903.80
  5. Step 5: Solve for x
    x = 20,370,904,903.80/185,500.64
  6. Step 6: Final answer
    x = 109,815.82

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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.