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Finding the Fourth Proportional to 118,160.92, 177,243 and 65,902.60

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Solution

The fourth proportional to 118,160.92, 177,243 and 65,902.60 is: 98,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,160.92 : 177,243 = 65,902.60 : x
  2. Step 2: Convert to fraction form
    118,160.92/177,243 = 65,902.60/x
  3. Step 3: Cross multiply
    118,160.92x = 177,243 × 65,902.60
  4. Step 4: Simplify right side
    118,160.92x = 11,680,774,531.80
  5. Step 5: Solve for x
    x = 11,680,774,531.80/118,160.92
  6. Step 6: Final answer
    x = 98,854.80

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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.