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Finding the Fourth Proportional to 129,685.60, 194,614.80 and 59,528.80

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Solution

The fourth proportional to 129,685.60, 194,614.80 and 59,528.80 is: 89,332.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,685.60 : 194,614.80 = 59,528.80 : x
  2. Step 2: Convert to fraction form
    129,685.60/194,614.80 = 59,528.80/x
  3. Step 3: Cross multiply
    129,685.60x = 194,614.80 × 59,528.80
  4. Step 4: Simplify right side
    129,685.60x = 11,585,185,506.24
  5. Step 5: Solve for x
    x = 11,585,185,506.24/129,685.60
  6. Step 6: Final answer
    x = 89,332.86

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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.