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Finding the Fourth Proportional to 75,969.36, 104,769.61 and 63,264.61

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Solution

The fourth proportional to 75,969.36, 104,769.61 and 63,264.61 is: 87,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,969.36 : 104,769.61 = 63,264.61 : x
  2. Step 2: Convert to fraction form
    75,969.36/104,769.61 = 63,264.61/x
  3. Step 3: Cross multiply
    75,969.36x = 104,769.61 × 63,264.61
  4. Step 4: Simplify right side
    75,969.36x = 6,628,208,096.42
  5. Step 5: Solve for x
    x = 6,628,208,096.42/75,969.36
  6. Step 6: Final answer
    x = 87,248.45

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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.