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Finding the Fourth Proportional to 58,113.76, 87,170.64 and 40,617.76

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Solution

The fourth proportional to 58,113.76, 87,170.64 and 40,617.76 is: 60,926.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,113.76 : 87,170.64 = 40,617.76 : x
  2. Step 2: Convert to fraction form
    58,113.76/87,170.64 = 40,617.76/x
  3. Step 3: Cross multiply
    58,113.76x = 87,170.64 × 40,617.76
  4. Step 4: Simplify right side
    58,113.76x = 3,540,676,134.57
  5. Step 5: Solve for x
    x = 3,540,676,134.57/58,113.76
  6. Step 6: Final answer
    x = 60,926.64

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1.5x scale

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.