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Finding the Fourth Proportional to 217,308.16, 299,884.72 and 132,425.44

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Solution

The fourth proportional to 217,308.16, 299,884.72 and 132,425.44 is: 182,746.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,308.16 : 299,884.72 = 132,425.44 : x
  2. Step 2: Convert to fraction form
    217,308.16/299,884.72 = 132,425.44/x
  3. Step 3: Cross multiply
    217,308.16x = 299,884.72 × 132,425.44
  4. Step 4: Simplify right side
    217,308.16x = 39,712,365,995.28
  5. Step 5: Solve for x
    x = 39,712,365,995.28/217,308.16
  6. Step 6: Final answer
    x = 182,746.78

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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.