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Finding the Fourth Proportional to 121,744.91, 168,024.66 and 70,060.94

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Solution

The fourth proportional to 121,744.91, 168,024.66 and 70,060.94 is: 96,693.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,744.91 : 168,024.66 = 70,060.94 : x
  2. Step 2: Convert to fraction form
    121,744.91/168,024.66 = 70,060.94/x
  3. Step 3: Cross multiply
    121,744.91x = 168,024.66 × 70,060.94
  4. Step 4: Simplify right side
    121,744.91x = 11,771,966,042.84
  5. Step 5: Solve for x
    x = 11,771,966,042.84/121,744.91
  6. Step 6: Final answer
    x = 96,693.71

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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.