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Finding the Fourth Proportional to 99,955.44, 137,936.88 and 54,632.88

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Solution

The fourth proportional to 99,955.44, 137,936.88 and 54,632.88 is: 75,392.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,955.44 : 137,936.88 = 54,632.88 : x
  2. Step 2: Convert to fraction form
    99,955.44/137,936.88 = 54,632.88/x
  3. Step 3: Cross multiply
    99,955.44x = 137,936.88 × 54,632.88
  4. Step 4: Simplify right side
    99,955.44x = 7,535,889,012.61
  5. Step 5: Solve for x
    x = 7,535,889,012.61/99,955.44
  6. Step 6: Final answer
    x = 75,392.49

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1.5x scale

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.