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Finding the Fourth Proportional to 133,652.80, 200,479.20 and 59,780.80

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Solution

The fourth proportional to 133,652.80, 200,479.20 and 59,780.80 is: 89,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,652.80 : 200,479.20 = 59,780.80 : x
  2. Step 2: Convert to fraction form
    133,652.80/200,479.20 = 59,780.80/x
  3. Step 3: Cross multiply
    133,652.80x = 200,479.20 × 59,780.80
  4. Step 4: Simplify right side
    133,652.80x = 11,984,806,959.36
  5. Step 5: Solve for x
    x = 11,984,806,959.36/133,652.80
  6. Step 6: Final answer
    x = 89,671.20

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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.