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Finding the Fourth Proportional to 363,801.12, 545,568.63 and 139,050.42

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Solution

The fourth proportional to 363,801.12, 545,568.63 and 139,050.42 is: 208,524.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,801.12 : 545,568.63 = 139,050.42 : x
  2. Step 2: Convert to fraction form
    363,801.12/545,568.63 = 139,050.42/x
  3. Step 3: Cross multiply
    363,801.12x = 545,568.63 × 139,050.42
  4. Step 4: Simplify right side
    363,801.12x = 75,861,547,140.32
  5. Step 5: Solve for x
    x = 75,861,547,140.32/363,801.12
  6. Step 6: Final answer
    x = 208,524.78

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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.