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Finding the Fourth Proportional to 111,248.68, 166,894.80 and 48,919

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Solution

The fourth proportional to 111,248.68, 166,894.80 and 48,919 is: 73,388.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,248.68 : 166,894.80 = 48,919 : x
  2. Step 2: Convert to fraction form
    111,248.68/166,894.80 = 48,919/x
  3. Step 3: Cross multiply
    111,248.68x = 166,894.80 × 48,919
  4. Step 4: Simplify right side
    111,248.68x = 8,164,326,721.20
  5. Step 5: Solve for x
    x = 8,164,326,721.20/111,248.68
  6. Step 6: Final answer
    x = 73,388.08

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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.