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Finding the Fourth Proportional to 574,059.60, 861,089.40 and 174,664.80

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Solution

The fourth proportional to 574,059.60, 861,089.40 and 174,664.80 is: 261,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,059.60 : 861,089.40 = 174,664.80 : x
  2. Step 2: Convert to fraction form
    574,059.60/861,089.40 = 174,664.80/x
  3. Step 3: Cross multiply
    574,059.60x = 861,089.40 × 174,664.80
  4. Step 4: Simplify right side
    574,059.60x = 150,402,007,833.12
  5. Step 5: Solve for x
    x = 150,402,007,833.12/574,059.60
  6. Step 6: Final answer
    x = 261,997.20

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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.