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Finding the Fourth Proportional to 574,909.61, 862,490.64 and 170,070.13

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Solution

The fourth proportional to 574,909.61, 862,490.64 and 170,070.13 is: 255,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,909.61 : 862,490.64 = 170,070.13 : x
  2. Step 2: Convert to fraction form
    574,909.61/862,490.64 = 170,070.13/x
  3. Step 3: Cross multiply
    574,909.61x = 862,490.64 × 170,070.13
  4. Step 4: Simplify right side
    574,909.61x = 146,683,893,750.12
  5. Step 5: Solve for x
    x = 146,683,893,750.12/574,909.61
  6. Step 6: Final answer
    x = 255,142.53

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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.