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Finding the Fourth Proportional to 119,921.70, 179,851.16 and 35,659.14

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Solution

The fourth proportional to 119,921.70, 179,851.16 and 35,659.14 is: 53,479.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,921.70 : 179,851.16 = 35,659.14 : x
  2. Step 2: Convert to fraction form
    119,921.70/179,851.16 = 35,659.14/x
  3. Step 3: Cross multiply
    119,921.70x = 179,851.16 × 35,659.14
  4. Step 4: Simplify right side
    119,921.70x = 6,413,337,693.60
  5. Step 5: Solve for x
    x = 6,413,337,693.60/119,921.70
  6. Step 6: Final answer
    x = 53,479.38

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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.