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Finding the Fourth Proportional to 169,015.91, 253,159.40 and 159,079.10

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Solution

The fourth proportional to 169,015.91, 253,159.40 and 159,079.10 is: 238,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,015.91 : 253,159.40 = 159,079.10 : x
  2. Step 2: Convert to fraction form
    169,015.91/253,159.40 = 159,079.10/x
  3. Step 3: Cross multiply
    169,015.91x = 253,159.40 × 159,079.10
  4. Step 4: Simplify right side
    169,015.91x = 40,272,368,640.44
  5. Step 5: Solve for x
    x = 40,272,368,640.44/169,015.91
  6. Step 6: Final answer
    x = 238,275.61

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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.