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Finding the Fourth Proportional to 119,324.30, 164,667.51 and 65,612.80

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Solution

The fourth proportional to 119,324.30, 164,667.51 and 65,612.80 is: 90,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,324.30 : 164,667.51 = 65,612.80 : x
  2. Step 2: Convert to fraction form
    119,324.30/164,667.51 = 65,612.80/x
  3. Step 3: Cross multiply
    119,324.30x = 164,667.51 × 65,612.80
  4. Step 4: Simplify right side
    119,324.30x = 10,804,295,742.41
  5. Step 5: Solve for x
    x = 10,804,295,742.41/119,324.30
  6. Step 6: Final answer
    x = 90,545.64

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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.