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Finding the Fourth Proportional to 159,887.47, 220,643.61 and 88,267.48

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Solution

The fourth proportional to 159,887.47, 220,643.61 and 88,267.48 is: 121,808.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,887.47 : 220,643.61 = 88,267.48 : x
  2. Step 2: Convert to fraction form
    159,887.47/220,643.61 = 88,267.48/x
  3. Step 3: Cross multiply
    159,887.47x = 220,643.61 × 88,267.48
  4. Step 4: Simplify right side
    159,887.47x = 19,475,655,432.80
  5. Step 5: Solve for x
    x = 19,475,655,432.80/159,887.47
  6. Step 6: Final answer
    x = 121,808.52

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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.