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Finding the Fourth Proportional to 99,466.84, 137,270.46 and 54,754.84

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Solution

The fourth proportional to 99,466.84, 137,270.46 and 54,754.84 is: 75,565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,466.84 : 137,270.46 = 54,754.84 : x
  2. Step 2: Convert to fraction form
    99,466.84/137,270.46 = 54,754.84/x
  3. Step 3: Cross multiply
    99,466.84x = 137,270.46 × 54,754.84
  4. Step 4: Simplify right side
    99,466.84x = 7,516,222,074.03
  5. Step 5: Solve for x
    x = 7,516,222,074.03/99,466.84
  6. Step 6: Final answer
    x = 75,565.10

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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.