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Finding the Fourth Proportional to 113,509.28, 170,275.52 and 43,447.52

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Solution

The fourth proportional to 113,509.28, 170,275.52 and 43,447.52 is: 65,175.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,509.28 : 170,275.52 = 43,447.52 : x
  2. Step 2: Convert to fraction form
    113,509.28/170,275.52 = 43,447.52/x
  3. Step 3: Cross multiply
    113,509.28x = 170,275.52 × 43,447.52
  4. Step 4: Simplify right side
    113,509.28x = 7,398,049,060.71
  5. Step 5: Solve for x
    x = 7,398,049,060.71/113,509.28
  6. Step 6: Final answer
    x = 65,175.72

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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.