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Finding the Fourth Proportional to 153,823.80, 230,606.10 and 79,951.80

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Solution

The fourth proportional to 153,823.80, 230,606.10 and 79,951.80 is: 119,860.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,823.80 : 230,606.10 = 79,951.80 : x
  2. Step 2: Convert to fraction form
    153,823.80/230,606.10 = 79,951.80/x
  3. Step 3: Cross multiply
    153,823.80x = 230,606.10 × 79,951.80
  4. Step 4: Simplify right side
    153,823.80x = 18,437,372,785.98
  5. Step 5: Solve for x
    x = 18,437,372,785.98/153,823.80
  6. Step 6: Final answer
    x = 119,860.34

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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.