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Finding the Fourth Proportional to 110,692.65, 152,767.63 and 67,697.31

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Solution

The fourth proportional to 110,692.65, 152,767.63 and 67,697.31 is: 93,429.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,692.65 : 152,767.63 = 67,697.31 : x
  2. Step 2: Convert to fraction form
    110,692.65/152,767.63 = 67,697.31/x
  3. Step 3: Cross multiply
    110,692.65x = 152,767.63 × 67,697.31
  4. Step 4: Simplify right side
    110,692.65x = 10,341,957,606.08
  5. Step 5: Solve for x
    x = 10,341,957,606.08/110,692.65
  6. Step 6: Final answer
    x = 93,429.49

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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.