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Finding the Fourth Proportional to 88,630.70, 122,310.74 and 48,345.32

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Solution

The fourth proportional to 88,630.70, 122,310.74 and 48,345.32 is: 66,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,630.70 : 122,310.74 = 48,345.32 : x
  2. Step 2: Convert to fraction form
    88,630.70/122,310.74 = 48,345.32/x
  3. Step 3: Cross multiply
    88,630.70x = 122,310.74 × 48,345.32
  4. Step 4: Simplify right side
    88,630.70x = 5,913,151,011.46
  5. Step 5: Solve for x
    x = 5,913,151,011.46/88,630.70
  6. Step 6: Final answer
    x = 66,716.74

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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.