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Finding the Fourth Proportional to 88,708.83, 122,421.15 and 48,424.98

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Solution

The fourth proportional to 88,708.83, 122,421.15 and 48,424.98 is: 66,828.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,708.83 : 122,421.15 = 48,424.98 : x
  2. Step 2: Convert to fraction form
    88,708.83/122,421.15 = 48,424.98/x
  3. Step 3: Cross multiply
    88,708.83x = 122,421.15 × 48,424.98
  4. Step 4: Simplify right side
    88,708.83x = 5,928,241,740.33
  5. Step 5: Solve for x
    x = 5,928,241,740.33/88,708.83
  6. Step 6: Final answer
    x = 66,828.09

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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.