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Finding the Fourth Proportional to 121,759.08, 168,031.13 and 68,044.24

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Solution

The fourth proportional to 121,759.08, 168,031.13 and 68,044.24 is: 93,903.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,759.08 : 168,031.13 = 68,044.24 : x
  2. Step 2: Convert to fraction form
    121,759.08/168,031.13 = 68,044.24/x
  3. Step 3: Cross multiply
    121,759.08x = 168,031.13 × 68,044.24
  4. Step 4: Simplify right side
    121,759.08x = 11,433,550,537.19
  5. Step 5: Solve for x
    x = 11,433,550,537.19/121,759.08
  6. Step 6: Final answer
    x = 93,903.06

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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.