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Finding the Fourth Proportional to 118,797.76, 177,998.97 and 83,663.62

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Solution

The fourth proportional to 118,797.76, 177,998.97 and 83,663.62 is: 125,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,797.76 : 177,998.97 = 83,663.62 : x
  2. Step 2: Convert to fraction form
    118,797.76/177,998.97 = 83,663.62/x
  3. Step 3: Cross multiply
    118,797.76x = 177,998.97 × 83,663.62
  4. Step 4: Simplify right side
    118,797.76x = 14,892,038,186.47
  5. Step 5: Solve for x
    x = 14,892,038,186.47/118,797.76
  6. Step 6: Final answer
    x = 125,356.22

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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.