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Finding the Fourth Proportional to 129,060.80, 193,591.20 and 35,566.40

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Solution

The fourth proportional to 129,060.80, 193,591.20 and 35,566.40 is: 53,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,060.80 : 193,591.20 = 35,566.40 : x
  2. Step 2: Convert to fraction form
    129,060.80/193,591.20 = 35,566.40/x
  3. Step 3: Cross multiply
    129,060.80x = 193,591.20 × 35,566.40
  4. Step 4: Simplify right side
    129,060.80x = 6,885,342,055.68
  5. Step 5: Solve for x
    x = 6,885,342,055.68/129,060.80
  6. Step 6: Final answer
    x = 53,349.60

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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.