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Finding the Fourth Proportional to 298,385.59, 447,758.06 and 108,862.60

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Solution

The fourth proportional to 298,385.59, 447,758.06 and 108,862.60 is: 163,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,385.59 : 447,758.06 = 108,862.60 : x
  2. Step 2: Convert to fraction form
    298,385.59/447,758.06 = 108,862.60/x
  3. Step 3: Cross multiply
    298,385.59x = 447,758.06 × 108,862.60
  4. Step 4: Simplify right side
    298,385.59x = 48,744,106,582.56
  5. Step 5: Solve for x
    x = 48,744,106,582.56/298,385.59
  6. Step 6: Final answer
    x = 163,359.45

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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.