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Finding the Fourth Proportional to 124,763.20, 186,853.20 and 122,257.60

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Solution

The fourth proportional to 124,763.20, 186,853.20 and 122,257.60 is: 183,100.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,763.20 : 186,853.20 = 122,257.60 : x
  2. Step 2: Convert to fraction form
    124,763.20/186,853.20 = 122,257.60/x
  3. Step 3: Cross multiply
    124,763.20x = 186,853.20 × 122,257.60
  4. Step 4: Simplify right side
    124,763.20x = 22,844,223,784.32
  5. Step 5: Solve for x
    x = 22,844,223,784.32/124,763.20
  6. Step 6: Final answer
    x = 183,100.66

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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.