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Finding the Fourth Proportional to 119,921.94, 179,851.55 and 35,659.40

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Solution

The fourth proportional to 119,921.94, 179,851.55 and 35,659.40 is: 53,479.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,921.94 : 179,851.55 = 35,659.40 : x
  2. Step 2: Convert to fraction form
    119,921.94/179,851.55 = 35,659.40/x
  3. Step 3: Cross multiply
    119,921.94x = 179,851.55 × 35,659.40
  4. Step 4: Simplify right side
    119,921.94x = 6,413,397,284.52
  5. Step 5: Solve for x
    x = 6,413,397,284.52/119,921.94
  6. Step 6: Final answer
    x = 53,479.77

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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.