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Finding the Fourth Proportional to 101,243.41, 151,858.96 and 42,079.59

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Solution

The fourth proportional to 101,243.41, 151,858.96 and 42,079.59 is: 63,116.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,243.41 : 151,858.96 = 42,079.59 : x
  2. Step 2: Convert to fraction form
    101,243.41/151,858.96 = 42,079.59/x
  3. Step 3: Cross multiply
    101,243.41x = 151,858.96 × 42,079.59
  4. Step 4: Simplify right side
    101,243.41x = 6,390,162,485.46
  5. Step 5: Solve for x
    x = 6,390,162,485.46/101,243.41
  6. Step 6: Final answer
    x = 63,116.83

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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.