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Finding the Fourth Proportional to 133,326.80, 200,099.55 and 128,952.80

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Solution

The fourth proportional to 133,326.80, 200,099.55 and 128,952.80 is: 193,534.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,326.80 : 200,099.55 = 128,952.80 : x
  2. Step 2: Convert to fraction form
    133,326.80/200,099.55 = 128,952.80/x
  3. Step 3: Cross multiply
    133,326.80x = 200,099.55 × 128,952.80
  4. Step 4: Simplify right side
    133,326.80x = 25,803,397,251.24
  5. Step 5: Solve for x
    x = 25,803,397,251.24/133,326.80
  6. Step 6: Final answer
    x = 193,534.96

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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.