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Finding the Fourth Proportional to 169,679.80, 234,050.52 and 104,240

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Solution

The fourth proportional to 169,679.80, 234,050.52 and 104,240 is: 143,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,679.80 : 234,050.52 = 104,240 : x
  2. Step 2: Convert to fraction form
    169,679.80/234,050.52 = 104,240/x
  3. Step 3: Cross multiply
    169,679.80x = 234,050.52 × 104,240
  4. Step 4: Simplify right side
    169,679.80x = 24,397,426,204.80
  5. Step 5: Solve for x
    x = 24,397,426,204.80/169,679.80
  6. Step 6: Final answer
    x = 143,785.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.