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Finding the Fourth Proportional to 574,713.80, 862,070.70 and 154,032.20

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Solution

The fourth proportional to 574,713.80, 862,070.70 and 154,032.20 is: 231,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,713.80 : 862,070.70 = 154,032.20 : x
  2. Step 2: Convert to fraction form
    574,713.80/862,070.70 = 154,032.20/x
  3. Step 3: Cross multiply
    574,713.80x = 862,070.70 × 154,032.20
  4. Step 4: Simplify right side
    574,713.80x = 132,786,646,476.54
  5. Step 5: Solve for x
    x = 132,786,646,476.54/574,713.80
  6. Step 6: Final answer
    x = 231,048.30

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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.