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Finding the Fourth Proportional to 101,963.68, 152,886.72 and 39,561.28

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Solution

The fourth proportional to 101,963.68, 152,886.72 and 39,561.28 is: 59,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,963.68 : 152,886.72 = 39,561.28 : x
  2. Step 2: Convert to fraction form
    101,963.68/152,886.72 = 39,561.28/x
  3. Step 3: Cross multiply
    101,963.68x = 152,886.72 × 39,561.28
  4. Step 4: Simplify right side
    101,963.68x = 6,048,394,338.20
  5. Step 5: Solve for x
    x = 6,048,394,338.20/101,963.68
  6. Step 6: Final answer
    x = 59,319.11

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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.