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Finding the Fourth Proportional to 475,031.28, 712,581.48 and 159,485.52

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Solution

The fourth proportional to 475,031.28, 712,581.48 and 159,485.52 is: 239,239.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,031.28 : 712,581.48 = 159,485.52 : x
  2. Step 2: Convert to fraction form
    475,031.28/712,581.48 = 159,485.52/x
  3. Step 3: Cross multiply
    475,031.28x = 712,581.48 × 159,485.52
  4. Step 4: Simplify right side
    475,031.28x = 113,646,427,880.17
  5. Step 5: Solve for x
    x = 113,646,427,880.17/475,031.28
  6. Step 6: Final answer
    x = 239,239.88

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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.