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Finding the Fourth Proportional to 577,870.80, 866,806.20 and 151,405.80

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Solution

The fourth proportional to 577,870.80, 866,806.20 and 151,405.80 is: 227,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,870.80 : 866,806.20 = 151,405.80 : x
  2. Step 2: Convert to fraction form
    577,870.80/866,806.20 = 151,405.80/x
  3. Step 3: Cross multiply
    577,870.80x = 866,806.20 × 151,405.80
  4. Step 4: Simplify right side
    577,870.80x = 131,239,486,155.96
  5. Step 5: Solve for x
    x = 131,239,486,155.96/577,870.80
  6. Step 6: Final answer
    x = 227,108.70

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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.