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Finding the Fourth Proportional to 119,522.40, 179,672.40 and 84,703.20

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Solution

The fourth proportional to 119,522.40, 179,672.40 and 84,703.20 is: 127,330.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,522.40 : 179,672.40 = 84,703.20 : x
  2. Step 2: Convert to fraction form
    119,522.40/179,672.40 = 84,703.20/x
  3. Step 3: Cross multiply
    119,522.40x = 179,672.40 × 84,703.20
  4. Step 4: Simplify right side
    119,522.40x = 15,218,827,231.68
  5. Step 5: Solve for x
    x = 15,218,827,231.68/119,522.40
  6. Step 6: Final answer
    x = 127,330.33

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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.