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Finding the Fourth Proportional to 119,292.48, 164,639.52 and 76,974.30

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Solution

The fourth proportional to 119,292.48, 164,639.52 and 76,974.30 is: 106,234.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,292.48 : 164,639.52 = 76,974.30 : x
  2. Step 2: Convert to fraction form
    119,292.48/164,639.52 = 76,974.30/x
  3. Step 3: Cross multiply
    119,292.48x = 164,639.52 × 76,974.30
  4. Step 4: Simplify right side
    119,292.48x = 12,673,011,804.34
  5. Step 5: Solve for x
    x = 12,673,011,804.34/119,292.48
  6. Step 6: Final answer
    x = 106,234.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.