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Finding the Fourth Proportional to 64,236, 88,548.48 and 55,235.28

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Solution

The fourth proportional to 64,236, 88,548.48 and 55,235.28 is: 76,141.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,236 : 88,548.48 = 55,235.28 : x
  2. Step 2: Convert to fraction form
    64,236/88,548.48 = 55,235.28/x
  3. Step 3: Cross multiply
    64,236x = 88,548.48 × 55,235.28
  4. Step 4: Simplify right side
    64,236x = 4,891,000,086.37
  5. Step 5: Solve for x
    x = 4,891,000,086.37/64,236
  6. Step 6: Final answer
    x = 76,141.11

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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.