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Finding the Fourth Proportional to 251,717.45, 377,518.51 and 71,799.45

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Solution

The fourth proportional to 251,717.45, 377,518.51 and 71,799.45 is: 107,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,717.45 : 377,518.51 = 71,799.45 : x
  2. Step 2: Convert to fraction form
    251,717.45/377,518.51 = 71,799.45/x
  3. Step 3: Cross multiply
    251,717.45x = 377,518.51 × 71,799.45
  4. Step 4: Simplify right side
    251,717.45x = 27,105,622,089.01
  5. Step 5: Solve for x
    x = 27,105,622,089.01/251,717.45
  6. Step 6: Final answer
    x = 107,682.73

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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.