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Finding the Fourth Proportional to 98,449.38, 135,860.15 and 53,737.38

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Solution

The fourth proportional to 98,449.38, 135,860.15 and 53,737.38 is: 74,157.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,449.38 : 135,860.15 = 53,737.38 : x
  2. Step 2: Convert to fraction form
    98,449.38/135,860.15 = 53,737.38/x
  3. Step 3: Cross multiply
    98,449.38x = 135,860.15 × 53,737.38
  4. Step 4: Simplify right side
    98,449.38x = 7,300,768,507.41
  5. Step 5: Solve for x
    x = 7,300,768,507.41/98,449.38
  6. Step 6: Final answer
    x = 74,157.59

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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.