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Finding the Fourth Proportional to 115,580.90, 159,513.12 and 67,833.22

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Solution

The fourth proportional to 115,580.90, 159,513.12 and 67,833.22 is: 93,616.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,580.90 : 159,513.12 = 67,833.22 : x
  2. Step 2: Convert to fraction form
    115,580.90/159,513.12 = 67,833.22/x
  3. Step 3: Cross multiply
    115,580.90x = 159,513.12 × 67,833.22
  4. Step 4: Simplify right side
    115,580.90x = 10,820,288,561.85
  5. Step 5: Solve for x
    x = 10,820,288,561.85/115,580.90
  6. Step 6: Final answer
    x = 93,616.58

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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.