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Finding the Fourth Proportional to 90,453.51, 124,826.13 and 50,171.01

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Solution

The fourth proportional to 90,453.51, 124,826.13 and 50,171.01 is: 69,236.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,453.51 : 124,826.13 = 50,171.01 : x
  2. Step 2: Convert to fraction form
    90,453.51/124,826.13 = 50,171.01/x
  3. Step 3: Cross multiply
    90,453.51x = 124,826.13 × 50,171.01
  4. Step 4: Simplify right side
    90,453.51x = 6,262,653,016.49
  5. Step 5: Solve for x
    x = 6,262,653,016.49/90,453.51
  6. Step 6: Final answer
    x = 69,236.15

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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.