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Finding the Fourth Proportional to 64,252, 88,722.48 and 40,418.56

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Solution

The fourth proportional to 64,252, 88,722.48 and 40,418.56 is: 55,812.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,252 : 88,722.48 = 40,418.56 : x
  2. Step 2: Convert to fraction form
    64,252/88,722.48 = 40,418.56/x
  3. Step 3: Cross multiply
    64,252x = 88,722.48 × 40,418.56
  4. Step 4: Simplify right side
    64,252x = 3,586,034,881.23
  5. Step 5: Solve for x
    x = 3,586,034,881.23/64,252
  6. Step 6: Final answer
    x = 55,812.04

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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.