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Finding the Fourth Proportional to 176,719.80, 265,079.70 and 76,927.80

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Solution

The fourth proportional to 176,719.80, 265,079.70 and 76,927.80 is: 115,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,719.80 : 265,079.70 = 76,927.80 : x
  2. Step 2: Convert to fraction form
    176,719.80/265,079.70 = 76,927.80/x
  3. Step 3: Cross multiply
    176,719.80x = 265,079.70 × 76,927.80
  4. Step 4: Simplify right side
    176,719.80x = 20,391,998,145.66
  5. Step 5: Solve for x
    x = 20,391,998,145.66/176,719.80
  6. Step 6: Final answer
    x = 115,391.70

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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.