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Finding the Fourth Proportional to 129,254.24, 193,920.48 and 40,520.48

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Solution

The fourth proportional to 129,254.24, 193,920.48 and 40,520.48 is: 60,792.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,254.24 : 193,920.48 = 40,520.48 : x
  2. Step 2: Convert to fraction form
    129,254.24/193,920.48 = 40,520.48/x
  3. Step 3: Cross multiply
    129,254.24x = 193,920.48 × 40,520.48
  4. Step 4: Simplify right side
    129,254.24x = 7,857,750,931.43
  5. Step 5: Solve for x
    x = 7,857,750,931.43/129,254.24
  6. Step 6: Final answer
    x = 60,792.98

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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.