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Finding the Fourth Proportional to 169,445.51, 253,990.92 and 57,086.90

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Solution

The fourth proportional to 169,445.51, 253,990.92 and 57,086.90 is: 85,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,445.51 : 253,990.92 = 57,086.90 : x
  2. Step 2: Convert to fraction form
    169,445.51/253,990.92 = 57,086.90/x
  3. Step 3: Cross multiply
    169,445.51x = 253,990.92 × 57,086.90
  4. Step 4: Simplify right side
    169,445.51x = 14,499,554,250.95
  5. Step 5: Solve for x
    x = 14,499,554,250.95/169,445.51
  6. Step 6: Final answer
    x = 85,570.60

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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.