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Finding the Fourth Proportional to 353,565.48, 487,910.98 and 192,417.06

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Solution

The fourth proportional to 353,565.48, 487,910.98 and 192,417.06 is: 265,530.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,565.48 : 487,910.98 = 192,417.06 : x
  2. Step 2: Convert to fraction form
    353,565.48/487,910.98 = 192,417.06/x
  3. Step 3: Cross multiply
    353,565.48x = 487,910.98 × 192,417.06
  4. Step 4: Simplify right side
    353,565.48x = 93,882,396,313.32
  5. Step 5: Solve for x
    x = 93,882,396,313.32/353,565.48
  6. Step 6: Final answer
    x = 265,530.44

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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.