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Finding the Fourth Proportional to 207,008.72, 285,673.16 and 117,587.92

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Solution

The fourth proportional to 207,008.72, 285,673.16 and 117,587.92 is: 162,271.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,008.72 : 285,673.16 = 117,587.92 : x
  2. Step 2: Convert to fraction form
    207,008.72/285,673.16 = 117,587.92/x
  3. Step 3: Cross multiply
    207,008.72x = 285,673.16 × 117,587.92
  4. Step 4: Simplify right side
    207,008.72x = 33,591,712,684.23
  5. Step 5: Solve for x
    x = 33,591,712,684.23/207,008.72
  6. Step 6: Final answer
    x = 162,271.97

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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.