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Finding the Fourth Proportional to 361,875.80, 542,813.70 and 325,134.20

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Solution

The fourth proportional to 361,875.80, 542,813.70 and 325,134.20 is: 487,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,875.80 : 542,813.70 = 325,134.20 : x
  2. Step 2: Convert to fraction form
    361,875.80/542,813.70 = 325,134.20/x
  3. Step 3: Cross multiply
    361,875.80x = 542,813.70 × 325,134.20
  4. Step 4: Simplify right side
    361,875.80x = 176,487,298,098.54
  5. Step 5: Solve for x
    x = 176,487,298,098.54/361,875.80
  6. Step 6: Final answer
    x = 487,701.30

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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.