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Finding the Fourth Proportional to 119,348.63, 164,697.83 and 65,633.65

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Solution

The fourth proportional to 119,348.63, 164,697.83 and 65,633.65 is: 90,572.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,348.63 : 164,697.83 = 65,633.65 : x
  2. Step 2: Convert to fraction form
    119,348.63/164,697.83 = 65,633.65/x
  3. Step 3: Cross multiply
    119,348.63x = 164,697.83 × 65,633.65
  4. Step 4: Simplify right side
    119,348.63x = 10,809,718,860.70
  5. Step 5: Solve for x
    x = 10,809,718,860.70/119,348.63
  6. Step 6: Final answer
    x = 90,572.63

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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.