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Finding the Fourth Proportional to 88,647.42, 122,270.82 and 52,809.78

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Solution

The fourth proportional to 88,647.42, 122,270.82 and 52,809.78 is: 72,840.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,647.42 : 122,270.82 = 52,809.78 : x
  2. Step 2: Convert to fraction form
    88,647.42/122,270.82 = 52,809.78/x
  3. Step 3: Cross multiply
    88,647.42x = 122,270.82 × 52,809.78
  4. Step 4: Simplify right side
    88,647.42x = 6,457,095,104.62
  5. Step 5: Solve for x
    x = 6,457,095,104.62/88,647.42
  6. Step 6: Final answer
    x = 72,840.19

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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.