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Finding the Fourth Proportional to 141,475.52, 212,215.72 and 47,983.68

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Solution

The fourth proportional to 141,475.52, 212,215.72 and 47,983.68 is: 71,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,475.52 : 212,215.72 = 47,983.68 : x
  2. Step 2: Convert to fraction form
    141,475.52/212,215.72 = 47,983.68/x
  3. Step 3: Cross multiply
    141,475.52x = 212,215.72 × 47,983.68
  4. Step 4: Simplify right side
    141,475.52x = 10,182,891,199.45
  5. Step 5: Solve for x
    x = 10,182,891,199.45/141,475.52
  6. Step 6: Final answer
    x = 71,976.35

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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.