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Finding the Fourth Proportional to 135,422.66, 203,009.58 and 46,655.06

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Solution

The fourth proportional to 135,422.66, 203,009.58 and 46,655.06 is: 69,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,422.66 : 203,009.58 = 46,655.06 : x
  2. Step 2: Convert to fraction form
    135,422.66/203,009.58 = 46,655.06/x
  3. Step 3: Cross multiply
    135,422.66x = 203,009.58 × 46,655.06
  4. Step 4: Simplify right side
    135,422.66x = 9,471,424,135.47
  5. Step 5: Solve for x
    x = 9,471,424,135.47/135,422.66
  6. Step 6: Final answer
    x = 69,939.73

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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.