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Finding the Fourth Proportional to 220,590.11, 330,751.52 and 98,988.34

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Solution

The fourth proportional to 220,590.11, 330,751.52 and 98,988.34 is: 148,422.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,590.11 : 330,751.52 = 98,988.34 : x
  2. Step 2: Convert to fraction form
    220,590.11/330,751.52 = 98,988.34/x
  3. Step 3: Cross multiply
    220,590.11x = 330,751.52 × 98,988.34
  4. Step 4: Simplify right side
    220,590.11x = 32,740,542,263.52
  5. Step 5: Solve for x
    x = 32,740,542,263.52/220,590.11
  6. Step 6: Final answer
    x = 148,422.53

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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.