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Finding the Fourth Proportional to 171,894.38, 257,840.78 and 53,565.80

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Solution

The fourth proportional to 171,894.38, 257,840.78 and 53,565.80 is: 80,348.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,894.38 : 257,840.78 = 53,565.80 : x
  2. Step 2: Convert to fraction form
    171,894.38/257,840.78 = 53,565.80/x
  3. Step 3: Cross multiply
    171,894.38x = 257,840.78 × 53,565.80
  4. Step 4: Simplify right side
    171,894.38x = 13,811,447,653.32
  5. Step 5: Solve for x
    x = 13,811,447,653.32/171,894.38
  6. Step 6: Final answer
    x = 80,348.45

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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.