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Finding the Fourth Proportional to 251,808.75, 377,713.13 and 85,596.75

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Solution

The fourth proportional to 251,808.75, 377,713.13 and 85,596.75 is: 128,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,808.75 : 377,713.13 = 85,596.75 : x
  2. Step 2: Convert to fraction form
    251,808.75/377,713.13 = 85,596.75/x
  3. Step 3: Cross multiply
    251,808.75x = 377,713.13 × 85,596.75
  4. Step 4: Simplify right side
    251,808.75x = 32,331,015,932.34
  5. Step 5: Solve for x
    x = 32,331,015,932.34/251,808.75
  6. Step 6: Final answer
    x = 128,395.13

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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.