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Finding the Fourth Proportional to 326,490.55, 489,565.90 and 116,097.91

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Solution

The fourth proportional to 326,490.55, 489,565.90 and 116,097.91 is: 174,086.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,490.55 : 489,565.90 = 116,097.91 : x
  2. Step 2: Convert to fraction form
    326,490.55/489,565.90 = 116,097.91/x
  3. Step 3: Cross multiply
    326,490.55x = 489,565.90 × 116,097.91
  4. Step 4: Simplify right side
    326,490.55x = 56,837,577,797.27
  5. Step 5: Solve for x
    x = 56,837,577,797.27/326,490.55
  6. Step 6: Final answer
    x = 174,086.44

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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.