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Finding the Fourth Proportional to 240,927.80, 361,391.70 and 178,719.80

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Solution

The fourth proportional to 240,927.80, 361,391.70 and 178,719.80 is: 268,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,927.80 : 361,391.70 = 178,719.80 : x
  2. Step 2: Convert to fraction form
    240,927.80/361,391.70 = 178,719.80/x
  3. Step 3: Cross multiply
    240,927.80x = 361,391.70 × 178,719.80
  4. Step 4: Simplify right side
    240,927.80x = 64,587,852,345.66
  5. Step 5: Solve for x
    x = 64,587,852,345.66/240,927.80
  6. Step 6: Final answer
    x = 268,079.70

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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.