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Finding the Fourth Proportional to 99,642.44, 149,463.45 and 40,464.24

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Solution

The fourth proportional to 99,642.44, 149,463.45 and 40,464.24 is: 60,696.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,642.44 : 149,463.45 = 40,464.24 : x
  2. Step 2: Convert to fraction form
    99,642.44/149,463.45 = 40,464.24/x
  3. Step 3: Cross multiply
    99,642.44x = 149,463.45 × 40,464.24
  4. Step 4: Simplify right side
    99,642.44x = 6,047,924,912.03
  5. Step 5: Solve for x
    x = 6,047,924,912.03/99,642.44
  6. Step 6: Final answer
    x = 60,696.28

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1.5x scale

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.