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Finding the Fourth Proportional to 98,308.25, 135,626.88 and 60,516.89

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Solution

The fourth proportional to 98,308.25, 135,626.88 and 60,516.89 is: 83,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,308.25 : 135,626.88 = 60,516.89 : x
  2. Step 2: Convert to fraction form
    98,308.25/135,626.88 = 60,516.89/x
  3. Step 3: Cross multiply
    98,308.25x = 135,626.88 × 60,516.89
  4. Step 4: Simplify right side
    98,308.25x = 8,207,716,675.42
  5. Step 5: Solve for x
    x = 8,207,716,675.42/98,308.25
  6. Step 6: Final answer
    x = 83,489.60

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1.5x scale

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.