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Finding the Fourth Proportional to 88,624.80, 122,233.12 and 56,796.72

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Solution

The fourth proportional to 88,624.80, 122,233.12 and 56,796.72 is: 78,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,624.80 : 122,233.12 = 56,796.72 : x
  2. Step 2: Convert to fraction form
    88,624.80/122,233.12 = 56,796.72/x
  3. Step 3: Cross multiply
    88,624.80x = 122,233.12 × 56,796.72
  4. Step 4: Simplify right side
    88,624.80x = 6,942,440,291.37
  5. Step 5: Solve for x
    x = 6,942,440,291.37/88,624.80
  6. Step 6: Final answer
    x = 78,335.19

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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.