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Finding the Fourth Proportional to 163,897.25, 245,786.54 and 57,251.43

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Solution

The fourth proportional to 163,897.25, 245,786.54 and 57,251.43 is: 85,856.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,897.25 : 245,786.54 = 57,251.43 : x
  2. Step 2: Convert to fraction form
    163,897.25/245,786.54 = 57,251.43/x
  3. Step 3: Cross multiply
    163,897.25x = 245,786.54 × 57,251.43
  4. Step 4: Simplify right side
    163,897.25x = 14,071,630,603.50
  5. Step 5: Solve for x
    x = 14,071,630,603.50/163,897.25
  6. Step 6: Final answer
    x = 85,856.42

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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.