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Finding the Fourth Proportional to 133,336.80, 200,114.55 and 128,962.80

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Solution

The fourth proportional to 133,336.80, 200,114.55 and 128,962.80 is: 193,549.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,336.80 : 200,114.55 = 128,962.80 : x
  2. Step 2: Convert to fraction form
    133,336.80/200,114.55 = 128,962.80/x
  3. Step 3: Cross multiply
    133,336.80x = 200,114.55 × 128,962.80
  4. Step 4: Simplify right side
    133,336.80x = 25,807,332,688.74
  5. Step 5: Solve for x
    x = 25,807,332,688.74/133,336.80
  6. Step 6: Final answer
    x = 193,549.96

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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.