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Finding the Fourth Proportional to 101,843.46, 152,764.65 and 55,391.58

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Solution

The fourth proportional to 101,843.46, 152,764.65 and 55,391.58 is: 83,087.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,843.46 : 152,764.65 = 55,391.58 : x
  2. Step 2: Convert to fraction form
    101,843.46/152,764.65 = 55,391.58/x
  3. Step 3: Cross multiply
    101,843.46x = 152,764.65 × 55,391.58
  4. Step 4: Simplify right side
    101,843.46x = 8,461,875,331.65
  5. Step 5: Solve for x
    x = 8,461,875,331.65/101,843.46
  6. Step 6: Final answer
    x = 83,087.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.