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Finding the Fourth Proportional to 220,589.77, 330,751.23 and 98,988.01

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Solution

The fourth proportional to 220,589.77, 330,751.23 and 98,988.01 is: 148,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,589.77 : 330,751.23 = 98,988.01 : x
  2. Step 2: Convert to fraction form
    220,589.77/330,751.23 = 98,988.01/x
  3. Step 3: Cross multiply
    220,589.77x = 330,751.23 × 98,988.01
  4. Step 4: Simplify right side
    220,589.77x = 32,740,406,062.75
  5. Step 5: Solve for x
    x = 32,740,406,062.75/220,589.77
  6. Step 6: Final answer
    x = 148,422.14

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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.