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Finding the Fourth Proportional to 134,311.92, 201,454.80 and 40,818.48

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Solution

The fourth proportional to 134,311.92, 201,454.80 and 40,818.48 is: 61,223.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,311.92 : 201,454.80 = 40,818.48 : x
  2. Step 2: Convert to fraction form
    134,311.92/201,454.80 = 40,818.48/x
  3. Step 3: Cross multiply
    134,311.92x = 201,454.80 × 40,818.48
  4. Step 4: Simplify right side
    134,311.92x = 8,223,078,724.70
  5. Step 5: Solve for x
    x = 8,223,078,724.70/134,311.92
  6. Step 6: Final answer
    x = 61,223.74

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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.