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Finding the Fourth Proportional to 88,228.50, 121,755.33 and 48,484.50

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Solution

The fourth proportional to 88,228.50, 121,755.33 and 48,484.50 is: 66,908.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,228.50 : 121,755.33 = 48,484.50 : x
  2. Step 2: Convert to fraction form
    88,228.50/121,755.33 = 48,484.50/x
  3. Step 3: Cross multiply
    88,228.50x = 121,755.33 × 48,484.50
  4. Step 4: Simplify right side
    88,228.50x = 5,903,246,297.39
  5. Step 5: Solve for x
    x = 5,903,246,297.39/88,228.50
  6. Step 6: Final answer
    x = 66,908.61

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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.