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Finding the Fourth Proportional to 92,226.64, 127,138.80 and 79,424.48

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Solution

The fourth proportional to 92,226.64, 127,138.80 and 79,424.48 is: 109,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,226.64 : 127,138.80 = 79,424.48 : x
  2. Step 2: Convert to fraction form
    92,226.64/127,138.80 = 79,424.48/x
  3. Step 3: Cross multiply
    92,226.64x = 127,138.80 × 79,424.48
  4. Step 4: Simplify right side
    92,226.64x = 10,097,933,077.82
  5. Step 5: Solve for x
    x = 10,097,933,077.82/92,226.64
  6. Step 6: Final answer
    x = 109,490.41

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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.