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Finding the Fourth Proportional to 119,203.26, 164,499.81 and 65,487.12

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Solution

The fourth proportional to 119,203.26, 164,499.81 and 65,487.12 is: 90,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,203.26 : 164,499.81 = 65,487.12 : x
  2. Step 2: Convert to fraction form
    119,203.26/164,499.81 = 65,487.12/x
  3. Step 3: Cross multiply
    119,203.26x = 164,499.81 × 65,487.12
  4. Step 4: Simplify right side
    119,203.26x = 10,772,618,797.45
  5. Step 5: Solve for x
    x = 10,772,618,797.45/119,203.26
  6. Step 6: Final answer
    x = 90,371.85

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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.