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Finding the Fourth Proportional to 118,505.67, 163,440.39 and 84,503.29

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Solution

The fourth proportional to 118,505.67, 163,440.39 and 84,503.29 is: 116,545.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,505.67 : 163,440.39 = 84,503.29 : x
  2. Step 2: Convert to fraction form
    118,505.67/163,440.39 = 84,503.29/x
  3. Step 3: Cross multiply
    118,505.67x = 163,440.39 × 84,503.29
  4. Step 4: Simplify right side
    118,505.67x = 13,811,250,265.28
  5. Step 5: Solve for x
    x = 13,811,250,265.28/118,505.67
  6. Step 6: Final answer
    x = 116,545.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.