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Finding the Fourth Proportional to 145,572.68, 200,899.46 and 88,217.02

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Solution

The fourth proportional to 145,572.68, 200,899.46 and 88,217.02 is: 121,745.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,572.68 : 200,899.46 = 88,217.02 : x
  2. Step 2: Convert to fraction form
    145,572.68/200,899.46 = 88,217.02/x
  3. Step 3: Cross multiply
    145,572.68x = 200,899.46 × 88,217.02
  4. Step 4: Simplify right side
    145,572.68x = 17,722,751,680.81
  5. Step 5: Solve for x
    x = 17,722,751,680.81/145,572.68
  6. Step 6: Final answer
    x = 121,745.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.