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Finding the Fourth Proportional to 106,751.48, 147,324.65 and 59,003.78

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Solution

The fourth proportional to 106,751.48, 147,324.65 and 59,003.78 is: 81,429.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,751.48 : 147,324.65 = 59,003.78 : x
  2. Step 2: Convert to fraction form
    106,751.48/147,324.65 = 59,003.78/x
  3. Step 3: Cross multiply
    106,751.48x = 147,324.65 × 59,003.78
  4. Step 4: Simplify right side
    106,751.48x = 8,692,710,205.53
  5. Step 5: Solve for x
    x = 8,692,710,205.53/106,751.48
  6. Step 6: Final answer
    x = 81,429.42

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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.