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Finding the Fourth Proportional to 326,565.14, 489,865.93 and 101,956.59

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Solution

The fourth proportional to 326,565.14, 489,865.93 and 101,956.59 is: 152,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,565.14 : 489,865.93 = 101,956.59 : x
  2. Step 2: Convert to fraction form
    326,565.14/489,865.93 = 101,956.59/x
  3. Step 3: Cross multiply
    326,565.14x = 489,865.93 × 101,956.59
  4. Step 4: Simplify right side
    326,565.14x = 49,945,059,525.09
  5. Step 5: Solve for x
    x = 49,945,059,525.09/326,565.14
  6. Step 6: Final answer
    x = 152,940.58

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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.