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Finding the Fourth Proportional to 220,585.18, 330,877.83 and 54,373.18

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Solution

The fourth proportional to 220,585.18, 330,877.83 and 54,373.18 is: 81,559.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,585.18 : 330,877.83 = 54,373.18 : x
  2. Step 2: Convert to fraction form
    220,585.18/330,877.83 = 54,373.18/x
  3. Step 3: Cross multiply
    220,585.18x = 330,877.83 × 54,373.18
  4. Step 4: Simplify right side
    220,585.18x = 17,990,879,808.60
  5. Step 5: Solve for x
    x = 17,990,879,808.60/220,585.18
  6. Step 6: Final answer
    x = 81,559.78

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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.