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Finding the Fourth Proportional to 118,870.62, 177,243.20 and 115,604.70

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Solution

The fourth proportional to 118,870.62, 177,243.20 and 115,604.70 is: 172,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,870.62 : 177,243.20 = 115,604.70 : x
  2. Step 2: Convert to fraction form
    118,870.62/177,243.20 = 115,604.70/x
  3. Step 3: Cross multiply
    118,870.62x = 177,243.20 × 115,604.70
  4. Step 4: Simplify right side
    118,870.62x = 20,490,146,385.02
  5. Step 5: Solve for x
    x = 20,490,146,385.02/118,870.62
  6. Step 6: Final answer
    x = 172,373.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.