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Finding the Fourth Proportional to 91,540.84, 137,541.32 and 58,275.76

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Solution

The fourth proportional to 91,540.84, 137,541.32 and 58,275.76 is: 87,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,540.84 : 137,541.32 = 58,275.76 : x
  2. Step 2: Convert to fraction form
    91,540.84/137,541.32 = 58,275.76/x
  3. Step 3: Cross multiply
    91,540.84x = 137,541.32 × 58,275.76
  4. Step 4: Simplify right side
    91,540.84x = 8,015,324,954.40
  5. Step 5: Solve for x
    x = 8,015,324,954.40/91,540.84
  6. Step 6: Final answer
    x = 87,560.10

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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.