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Finding the Fourth Proportional to 88,649.64, 122,336.90 and 48,363.28

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Solution

The fourth proportional to 88,649.64, 122,336.90 and 48,363.28 is: 66,741.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,649.64 : 122,336.90 = 48,363.28 : x
  2. Step 2: Convert to fraction form
    88,649.64/122,336.90 = 48,363.28/x
  3. Step 3: Cross multiply
    88,649.64x = 122,336.90 × 48,363.28
  4. Step 4: Simplify right side
    88,649.64x = 5,916,613,749.03
  5. Step 5: Solve for x
    x = 5,916,613,749.03/88,649.64
  6. Step 6: Final answer
    x = 66,741.54

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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.