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Finding the Fourth Proportional to 326,351.64, 489,667.77 and 176,698.86

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Solution

The fourth proportional to 326,351.64, 489,667.77 and 176,698.86 is: 265,124.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,351.64 : 489,667.77 = 176,698.86 : x
  2. Step 2: Convert to fraction form
    326,351.64/489,667.77 = 176,698.86/x
  3. Step 3: Cross multiply
    326,351.64x = 489,667.77 × 176,698.86
  4. Step 4: Simplify right side
    326,351.64x = 86,523,736,737.74
  5. Step 5: Solve for x
    x = 86,523,736,737.74/326,351.64
  6. Step 6: Final answer
    x = 265,124.26

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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.