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Finding the Fourth Proportional to 98,340.53, 135,731.42 and 62,523.55

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Solution

The fourth proportional to 98,340.53, 135,731.42 and 62,523.55 is: 86,296.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,340.53 : 135,731.42 = 62,523.55 : x
  2. Step 2: Convert to fraction form
    98,340.53/135,731.42 = 62,523.55/x
  3. Step 3: Cross multiply
    98,340.53x = 135,731.42 × 62,523.55
  4. Step 4: Simplify right side
    98,340.53x = 8,486,409,728.81
  5. Step 5: Solve for x
    x = 8,486,409,728.81/98,340.53
  6. Step 6: Final answer
    x = 86,296.16

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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.