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Finding the Fourth Proportional to 70,751.56, 97,581.80 and 43,878.88

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Solution

The fourth proportional to 70,751.56, 97,581.80 and 43,878.88 is: 60,518.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,751.56 : 97,581.80 = 43,878.88 : x
  2. Step 2: Convert to fraction form
    70,751.56/97,581.80 = 43,878.88/x
  3. Step 3: Cross multiply
    70,751.56x = 97,581.80 × 43,878.88
  4. Step 4: Simplify right side
    70,751.56x = 4,281,780,092.38
  5. Step 5: Solve for x
    x = 4,281,780,092.38/70,751.56
  6. Step 6: Final answer
    x = 60,518.53

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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.