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Finding the Fourth Proportional to 111,876.40, 167,555.40 and 76,625.20

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Solution

The fourth proportional to 111,876.40, 167,555.40 and 76,625.20 is: 114,760.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,876.40 : 167,555.40 = 76,625.20 : x
  2. Step 2: Convert to fraction form
    111,876.40/167,555.40 = 76,625.20/x
  3. Step 3: Cross multiply
    111,876.40x = 167,555.40 × 76,625.20
  4. Step 4: Simplify right side
    111,876.40x = 12,838,966,036.08
  5. Step 5: Solve for x
    x = 12,838,966,036.08/111,876.40
  6. Step 6: Final answer
    x = 114,760.27

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1.5x scale

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.