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Finding the Fourth Proportional to 294,285.62, 441,350.43 and 81,002.90

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Solution

The fourth proportional to 294,285.62, 441,350.43 and 81,002.90 is: 121,482.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,285.62 : 441,350.43 = 81,002.90 : x
  2. Step 2: Convert to fraction form
    294,285.62/441,350.43 = 81,002.90/x
  3. Step 3: Cross multiply
    294,285.62x = 441,350.43 × 81,002.90
  4. Step 4: Simplify right side
    294,285.62x = 35,750,664,746.25
  5. Step 5: Solve for x
    x = 35,750,664,746.25/294,285.62
  6. Step 6: Final answer
    x = 121,482.88

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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.