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Finding the Fourth Proportional to 217,248.74, 299,802.57 and 126,658.34

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Solution

The fourth proportional to 217,248.74, 299,802.57 and 126,658.34 is: 174,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,248.74 : 299,802.57 = 126,658.34 : x
  2. Step 2: Convert to fraction form
    217,248.74/299,802.57 = 126,658.34/x
  3. Step 3: Cross multiply
    217,248.74x = 299,802.57 × 126,658.34
  4. Step 4: Simplify right side
    217,248.74x = 37,972,495,843.93
  5. Step 5: Solve for x
    x = 37,972,495,843.93/217,248.74
  6. Step 6: Final answer
    x = 174,788.11

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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.