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Finding the Fourth Proportional to 363,482.31, 545,184.57 and 126,829.47

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Solution

The fourth proportional to 363,482.31, 545,184.57 and 126,829.47 is: 190,230.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,482.31 : 545,184.57 = 126,829.47 : x
  2. Step 2: Convert to fraction form
    363,482.31/545,184.57 = 126,829.47/x
  3. Step 3: Cross multiply
    363,482.31x = 545,184.57 × 126,829.47
  4. Step 4: Simplify right side
    363,482.31x = 69,145,470,065.28
  5. Step 5: Solve for x
    x = 69,145,470,065.28/363,482.31
  6. Step 6: Final answer
    x = 190,230.63

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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.