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Finding the Fourth Proportional to 353,572.71, 487,921.04 and 192,424.35

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Solution

The fourth proportional to 353,572.71, 487,921.04 and 192,424.35 is: 265,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,572.71 : 487,921.04 = 192,424.35 : x
  2. Step 2: Convert to fraction form
    353,572.71/487,921.04 = 192,424.35/x
  3. Step 3: Cross multiply
    353,572.71x = 487,921.04 × 192,424.35
  4. Step 4: Simplify right side
    353,572.71x = 93,887,888,011.20
  5. Step 5: Solve for x
    x = 93,887,888,011.20/353,572.71
  6. Step 6: Final answer
    x = 265,540.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.