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Finding the Fourth Proportional to 71,412.42, 98,568.72 and 44,538.78

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Solution

The fourth proportional to 71,412.42, 98,568.72 and 44,538.78 is: 61,475.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,412.42 : 98,568.72 = 44,538.78 : x
  2. Step 2: Convert to fraction form
    71,412.42/98,568.72 = 44,538.78/x
  3. Step 3: Cross multiply
    71,412.42x = 98,568.72 × 44,538.78
  4. Step 4: Simplify right side
    71,412.42x = 4,390,130,534.96
  5. Step 5: Solve for x
    x = 4,390,130,534.96/71,412.42
  6. Step 6: Final answer
    x = 61,475.73

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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.