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Finding the Fourth Proportional to 107,987.76, 149,023.53 and 60,244.74

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Solution

The fourth proportional to 107,987.76, 149,023.53 and 60,244.74 is: 83,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,987.76 : 149,023.53 = 60,244.74 : x
  2. Step 2: Convert to fraction form
    107,987.76/149,023.53 = 60,244.74/x
  3. Step 3: Cross multiply
    107,987.76x = 149,023.53 × 60,244.74
  4. Step 4: Simplify right side
    107,987.76x = 8,977,883,818.73
  5. Step 5: Solve for x
    x = 8,977,883,818.73/107,987.76
  6. Step 6: Final answer
    x = 83,137.98

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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.