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Finding the Fourth Proportional to 129,062.80, 193,594.20 and 35,568.40

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Solution

The fourth proportional to 129,062.80, 193,594.20 and 35,568.40 is: 53,352.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,062.80 : 193,594.20 = 35,568.40 : x
  2. Step 2: Convert to fraction form
    129,062.80/193,594.20 = 35,568.40/x
  3. Step 3: Cross multiply
    129,062.80x = 193,594.20 × 35,568.40
  4. Step 4: Simplify right side
    129,062.80x = 6,885,835,943.28
  5. Step 5: Solve for x
    x = 6,885,835,943.28/129,062.80
  6. Step 6: Final answer
    x = 53,352.60

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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.