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Finding the Fourth Proportional to 119,758.38, 179,689.41 and 64,289.58

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Solution

The fourth proportional to 119,758.38, 179,689.41 and 64,289.58 is: 96,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,758.38 : 179,689.41 = 64,289.58 : x
  2. Step 2: Convert to fraction form
    119,758.38/179,689.41 = 64,289.58/x
  3. Step 3: Cross multiply
    119,758.38x = 179,689.41 × 64,289.58
  4. Step 4: Simplify right side
    119,758.38x = 11,552,156,699.35
  5. Step 5: Solve for x
    x = 11,552,156,699.35/119,758.38
  6. Step 6: Final answer
    x = 96,462.20

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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.