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Finding the Fourth Proportional to 159,482.57, 220,095.89 and 87,862.58

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Solution

The fourth proportional to 159,482.57, 220,095.89 and 87,862.58 is: 121,255.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,482.57 : 220,095.89 = 87,862.58 : x
  2. Step 2: Convert to fraction form
    159,482.57/220,095.89 = 87,862.58/x
  3. Step 3: Cross multiply
    159,482.57x = 220,095.89 × 87,862.58
  4. Step 4: Simplify right side
    159,482.57x = 19,338,191,203.00
  5. Step 5: Solve for x
    x = 19,338,191,203.00/159,482.57
  6. Step 6: Final answer
    x = 121,255.83

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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.