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Finding the Fourth Proportional to 363,143.20, 544,520.40 and 152,543.20

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Solution

The fourth proportional to 363,143.20, 544,520.40 and 152,543.20 is: 228,733.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,143.20 : 544,520.40 = 152,543.20 : x
  2. Step 2: Convert to fraction form
    363,143.20/544,520.40 = 152,543.20/x
  3. Step 3: Cross multiply
    363,143.20x = 544,520.40 × 152,543.20
  4. Step 4: Simplify right side
    363,143.20x = 83,062,884,281.28
  5. Step 5: Solve for x
    x = 83,062,884,281.28/363,143.20
  6. Step 6: Final answer
    x = 228,733.14

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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.