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Finding the Fourth Proportional to 69,215.04, 95,523.84 and 42,375.28

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Solution

The fourth proportional to 69,215.04, 95,523.84 and 42,375.28 is: 58,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,215.04 : 95,523.84 = 42,375.28 : x
  2. Step 2: Convert to fraction form
    69,215.04/95,523.84 = 42,375.28/x
  3. Step 3: Cross multiply
    69,215.04x = 95,523.84 × 42,375.28
  4. Step 4: Simplify right side
    69,215.04x = 4,047,849,466.68
  5. Step 5: Solve for x
    x = 4,047,849,466.68/69,215.04
  6. Step 6: Final answer
    x = 58,482.22

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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.