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Finding the Fourth Proportional to 76,335.88, 114,379.32 and 38,844.40

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Solution

The fourth proportional to 76,335.88, 114,379.32 and 38,844.40 is: 58,203.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,335.88 : 114,379.32 = 38,844.40 : x
  2. Step 2: Convert to fraction form
    76,335.88/114,379.32 = 38,844.40/x
  3. Step 3: Cross multiply
    76,335.88x = 114,379.32 × 38,844.40
  4. Step 4: Simplify right side
    76,335.88x = 4,442,996,057.81
  5. Step 5: Solve for x
    x = 4,442,996,057.81/76,335.88
  6. Step 6: Final answer
    x = 58,203.25

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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.