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Finding the Fourth Proportional to 115,175.52, 172,631.52 and 48,515.76

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Solution

The fourth proportional to 115,175.52, 172,631.52 and 48,515.76 is: 72,718.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,175.52 : 172,631.52 = 48,515.76 : x
  2. Step 2: Convert to fraction form
    115,175.52/172,631.52 = 48,515.76/x
  3. Step 3: Cross multiply
    115,175.52x = 172,631.52 × 48,515.76
  4. Step 4: Simplify right side
    115,175.52x = 8,375,349,392.76
  5. Step 5: Solve for x
    x = 8,375,349,392.76/115,175.52
  6. Step 6: Final answer
    x = 72,718.14

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1.5x scale

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.