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Finding the Fourth Proportional to 112,995.60, 169,660.80 and 63,175.20

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Solution

The fourth proportional to 112,995.60, 169,660.80 and 63,175.20 is: 94,856.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,995.60 : 169,660.80 = 63,175.20 : x
  2. Step 2: Convert to fraction form
    112,995.60/169,660.80 = 63,175.20/x
  3. Step 3: Cross multiply
    112,995.60x = 169,660.80 × 63,175.20
  4. Step 4: Simplify right side
    112,995.60x = 10,718,354,972.16
  5. Step 5: Solve for x
    x = 10,718,354,972.16/112,995.60
  6. Step 6: Final answer
    x = 94,856.39

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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.