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Finding the Fourth Proportional to 118,250.70, 177,580.85 and 83,434.70

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Solution

The fourth proportional to 118,250.70, 177,580.85 and 83,434.70 is: 125,296.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,250.70 : 177,580.85 = 83,434.70 : x
  2. Step 2: Convert to fraction form
    118,250.70/177,580.85 = 83,434.70/x
  3. Step 3: Cross multiply
    118,250.70x = 177,580.85 × 83,434.70
  4. Step 4: Simplify right side
    118,250.70x = 14,816,404,945.50
  5. Step 5: Solve for x
    x = 14,816,404,945.50/118,250.70
  6. Step 6: Final answer
    x = 125,296.55

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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.