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Finding the Fourth Proportional to 115,752.60, 173,628.90 and 68,513.40

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Solution

The fourth proportional to 115,752.60, 173,628.90 and 68,513.40 is: 102,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,752.60 : 173,628.90 = 68,513.40 : x
  2. Step 2: Convert to fraction form
    115,752.60/173,628.90 = 68,513.40/x
  3. Step 3: Cross multiply
    115,752.60x = 173,628.90 × 68,513.40
  4. Step 4: Simplify right side
    115,752.60x = 11,895,906,277.26
  5. Step 5: Solve for x
    x = 11,895,906,277.26/115,752.60
  6. Step 6: Final answer
    x = 102,770.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.