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Finding the Fourth Proportional to 217,707.84, 326,560.14 and 118,498.68

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Solution

The fourth proportional to 217,707.84, 326,560.14 and 118,498.68 is: 177,747.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,707.84 : 326,560.14 = 118,498.68 : x
  2. Step 2: Convert to fraction form
    217,707.84/326,560.14 = 118,498.68/x
  3. Step 3: Cross multiply
    217,707.84x = 326,560.14 × 118,498.68
  4. Step 4: Simplify right side
    217,707.84x = 38,696,945,530.62
  5. Step 5: Solve for x
    x = 38,696,945,530.62/217,707.84
  6. Step 6: Final answer
    x = 177,747.14

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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.