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Finding the Fourth Proportional to 207,009.72, 285,674.54 and 117,588.92

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Solution

The fourth proportional to 207,009.72, 285,674.54 and 117,588.92 is: 162,273.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,009.72 : 285,674.54 = 117,588.92 : x
  2. Step 2: Convert to fraction form
    207,009.72/285,674.54 = 117,588.92/x
  3. Step 3: Cross multiply
    207,009.72x = 285,674.54 × 117,588.92
  4. Step 4: Simplify right side
    207,009.72x = 33,592,160,630.10
  5. Step 5: Solve for x
    x = 33,592,160,630.10/207,009.72
  6. Step 6: Final answer
    x = 162,273.35

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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.