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Finding the Fourth Proportional to 58,928.81, 88,290.07 and 40,147.88

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Solution

The fourth proportional to 58,928.81, 88,290.07 and 40,147.88 is: 60,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,928.81 : 88,290.07 = 40,147.88 : x
  2. Step 2: Convert to fraction form
    58,928.81/88,290.07 = 40,147.88/x
  3. Step 3: Cross multiply
    58,928.81x = 88,290.07 × 40,147.88
  4. Step 4: Simplify right side
    58,928.81x = 3,544,658,593.73
  5. Step 5: Solve for x
    x = 3,544,658,593.73/58,928.81
  6. Step 6: Final answer
    x = 60,151.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.