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Finding the Fourth Proportional to 159,655.80, 220,326.54 and 88,038.36

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Solution

The fourth proportional to 159,655.80, 220,326.54 and 88,038.36 is: 121,493.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,655.80 : 220,326.54 = 88,038.36 : x
  2. Step 2: Convert to fraction form
    159,655.80/220,326.54 = 88,038.36/x
  3. Step 3: Cross multiply
    159,655.80x = 220,326.54 × 88,038.36
  4. Step 4: Simplify right side
    159,655.80x = 19,397,187,246.07
  5. Step 5: Solve for x
    x = 19,397,187,246.07/159,655.80
  6. Step 6: Final answer
    x = 121,493.78

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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.