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Finding the Fourth Proportional to 119,338.86, 164,683.20 and 65,620.68

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Solution

The fourth proportional to 119,338.86, 164,683.20 and 65,620.68 is: 90,554.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,338.86 : 164,683.20 = 65,620.68 : x
  2. Step 2: Convert to fraction form
    119,338.86/164,683.20 = 65,620.68/x
  3. Step 3: Cross multiply
    119,338.86x = 164,683.20 × 65,620.68
  4. Step 4: Simplify right side
    119,338.86x = 10,806,623,568.58
  5. Step 5: Solve for x
    x = 10,806,623,568.58/119,338.86
  6. Step 6: Final answer
    x = 90,554.10

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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.