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Finding the Fourth Proportional to 237,891.28, 328,290.42 and 130,462.12

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Solution

The fourth proportional to 237,891.28, 328,290.42 and 130,462.12 is: 180,037.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,891.28 : 328,290.42 = 130,462.12 : x
  2. Step 2: Convert to fraction form
    237,891.28/328,290.42 = 130,462.12/x
  3. Step 3: Cross multiply
    237,891.28x = 328,290.42 × 130,462.12
  4. Step 4: Simplify right side
    237,891.28x = 42,829,464,168.89
  5. Step 5: Solve for x
    x = 42,829,464,168.89/237,891.28
  6. Step 6: Final answer
    x = 180,037.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.