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Finding the Fourth Proportional to 207,091.90, 310,309.80 and 132,077.80

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Solution

The fourth proportional to 207,091.90, 310,309.80 and 132,077.80 is: 197,907.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,091.90 : 310,309.80 = 132,077.80 : x
  2. Step 2: Convert to fraction form
    207,091.90/310,309.80 = 132,077.80/x
  3. Step 3: Cross multiply
    207,091.90x = 310,309.80 × 132,077.80
  4. Step 4: Simplify right side
    207,091.90x = 40,985,035,702.44
  5. Step 5: Solve for x
    x = 40,985,035,702.44/207,091.90
  6. Step 6: Final answer
    x = 197,907.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.