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Finding the Fourth Proportional to 292,091.80, 402,992.22 and 163,009.30

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Solution

The fourth proportional to 292,091.80, 402,992.22 and 163,009.30 is: 224,900.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,091.80 : 402,992.22 = 163,009.30 : x
  2. Step 2: Convert to fraction form
    292,091.80/402,992.22 = 163,009.30/x
  3. Step 3: Cross multiply
    292,091.80x = 402,992.22 × 163,009.30
  4. Step 4: Simplify right side
    292,091.80x = 65,691,479,687.65
  5. Step 5: Solve for x
    x = 65,691,479,687.65/292,091.80
  6. Step 6: Final answer
    x = 224,900.12

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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.