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Finding the Fourth Proportional to 119,763.85, 179,654.88 and 69,848.91

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Solution

The fourth proportional to 119,763.85, 179,654.88 and 69,848.91 is: 104,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,763.85 : 179,654.88 = 69,848.91 : x
  2. Step 2: Convert to fraction form
    119,763.85/179,654.88 = 69,848.91/x
  3. Step 3: Cross multiply
    119,763.85x = 179,654.88 × 69,848.91
  4. Step 4: Simplify right side
    119,763.85x = 12,548,697,544.18
  5. Step 5: Solve for x
    x = 12,548,697,544.18/119,763.85
  6. Step 6: Final answer
    x = 104,778.68

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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.