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Finding the Fourth Proportional to 70,494.52, 97,273.42 and 40,281.80

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Solution

The fourth proportional to 70,494.52, 97,273.42 and 40,281.80 is: 55,583.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,494.52 : 97,273.42 = 40,281.80 : x
  2. Step 2: Convert to fraction form
    70,494.52/97,273.42 = 40,281.80/x
  3. Step 3: Cross multiply
    70,494.52x = 97,273.42 × 40,281.80
  4. Step 4: Simplify right side
    70,494.52x = 3,918,348,449.76
  5. Step 5: Solve for x
    x = 3,918,348,449.76/70,494.52
  6. Step 6: Final answer
    x = 55,583.73

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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.