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Finding the Fourth Proportional to 133,657.80, 200,486.70 and 59,785.80

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Solution

The fourth proportional to 133,657.80, 200,486.70 and 59,785.80 is: 89,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,657.80 : 200,486.70 = 59,785.80 : x
  2. Step 2: Convert to fraction form
    133,657.80/200,486.70 = 59,785.80/x
  3. Step 3: Cross multiply
    133,657.80x = 200,486.70 × 59,785.80
  4. Step 4: Simplify right side
    133,657.80x = 11,986,257,748.86
  5. Step 5: Solve for x
    x = 11,986,257,748.86/133,657.80
  6. Step 6: Final answer
    x = 89,678.70

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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.