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Finding the Fourth Proportional to 220,050, 330,117.42 and 93,687.90

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Solution

The fourth proportional to 220,050, 330,117.42 and 93,687.90 is: 140,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,050 : 330,117.42 = 93,687.90 : x
  2. Step 2: Convert to fraction form
    220,050/330,117.42 = 93,687.90/x
  3. Step 3: Cross multiply
    220,050x = 330,117.42 × 93,687.90
  4. Step 4: Simplify right side
    220,050x = 30,928,007,833.22
  5. Step 5: Solve for x
    x = 30,928,007,833.22/220,050
  6. Step 6: Final answer
    x = 140,549.91

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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.