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Finding the Fourth Proportional to 592,140.80, 888,016.80 and 218,115.20

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Solution

The fourth proportional to 592,140.80, 888,016.80 and 218,115.20 is: 327,101.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,140.80 : 888,016.80 = 218,115.20 : x
  2. Step 2: Convert to fraction form
    592,140.80/888,016.80 = 218,115.20/x
  3. Step 3: Cross multiply
    592,140.80x = 888,016.80 × 218,115.20
  4. Step 4: Simplify right side
    592,140.80x = 193,689,961,935.36
  5. Step 5: Solve for x
    x = 193,689,961,935.36/592,140.80
  6. Step 6: Final answer
    x = 327,101.19

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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.