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Finding the Fourth Proportional to 81,763.64, 122,473.08 and 37,427.64

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Solution

The fourth proportional to 81,763.64, 122,473.08 and 37,427.64 is: 56,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,763.64 : 122,473.08 = 37,427.64 : x
  2. Step 2: Convert to fraction form
    81,763.64/122,473.08 = 37,427.64/x
  3. Step 3: Cross multiply
    81,763.64x = 122,473.08 × 37,427.64
  4. Step 4: Simplify right side
    81,763.64x = 4,583,878,347.93
  5. Step 5: Solve for x
    x = 4,583,878,347.93/81,763.64
  6. Step 6: Final answer
    x = 56,062.55

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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.