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Finding the Fourth Proportional to 255,414.80, 352,104.18 and 178,696.20

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Solution

The fourth proportional to 255,414.80, 352,104.18 and 178,696.20 is: 246,343.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,414.80 : 352,104.18 = 178,696.20 : x
  2. Step 2: Convert to fraction form
    255,414.80/352,104.18 = 178,696.20/x
  3. Step 3: Cross multiply
    255,414.80x = 352,104.18 × 178,696.20
  4. Step 4: Simplify right side
    255,414.80x = 62,919,678,970.12
  5. Step 5: Solve for x
    x = 62,919,678,970.12/255,414.80
  6. Step 6: Final answer
    x = 246,343.13

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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.