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Finding the Fourth Proportional to 577,461.18, 866,191.53 and 156,798.78

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Solution

The fourth proportional to 577,461.18, 866,191.53 and 156,798.78 is: 235,198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,461.18 : 866,191.53 = 156,798.78 : x
  2. Step 2: Convert to fraction form
    577,461.18/866,191.53 = 156,798.78/x
  3. Step 3: Cross multiply
    577,461.18x = 866,191.53 × 156,798.78
  4. Step 4: Simplify right side
    577,461.18x = 135,817,775,150.33
  5. Step 5: Solve for x
    x = 135,817,775,150.33/577,461.18
  6. Step 6: Final answer
    x = 235,198.10

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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.