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Finding the Fourth Proportional to 77,893.34, 107,490.26 and 49,228.37

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Solution

The fourth proportional to 77,893.34, 107,490.26 and 49,228.37 is: 67,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,893.34 : 107,490.26 = 49,228.37 : x
  2. Step 2: Convert to fraction form
    77,893.34/107,490.26 = 49,228.37/x
  3. Step 3: Cross multiply
    77,893.34x = 107,490.26 × 49,228.37
  4. Step 4: Simplify right side
    77,893.34x = 5,291,570,682.47
  5. Step 5: Solve for x
    x = 5,291,570,682.47/77,893.34
  6. Step 6: Final answer
    x = 67,933.55

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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.