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Finding the Fourth Proportional to 122,158.80, 183,189.60 and 43,232.40

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Solution

The fourth proportional to 122,158.80, 183,189.60 and 43,232.40 is: 64,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,158.80 : 183,189.60 = 43,232.40 : x
  2. Step 2: Convert to fraction form
    122,158.80/183,189.60 = 43,232.40/x
  3. Step 3: Cross multiply
    122,158.80x = 183,189.60 × 43,232.40
  4. Step 4: Simplify right side
    122,158.80x = 7,919,726,063.04
  5. Step 5: Solve for x
    x = 7,919,726,063.04/122,158.80
  6. Step 6: Final answer
    x = 64,831.40

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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.