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Finding the Fourth Proportional to 592,122.80, 887,989.80 and 218,097.20

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Solution

The fourth proportional to 592,122.80, 887,989.80 and 218,097.20 is: 327,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,122.80 : 887,989.80 = 218,097.20 : x
  2. Step 2: Convert to fraction form
    592,122.80/887,989.80 = 218,097.20/x
  3. Step 3: Cross multiply
    592,122.80x = 887,989.80 × 218,097.20
  4. Step 4: Simplify right side
    592,122.80x = 193,668,089,008.56
  5. Step 5: Solve for x
    x = 193,668,089,008.56/592,122.80
  6. Step 6: Final answer
    x = 327,074.20

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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.