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Finding the Fourth Proportional to 101,903.58, 153,027.50 and 66,425.04

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Solution

The fourth proportional to 101,903.58, 153,027.50 and 66,425.04 is: 99,749.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,903.58 : 153,027.50 = 66,425.04 : x
  2. Step 2: Convert to fraction form
    101,903.58/153,027.50 = 66,425.04/x
  3. Step 3: Cross multiply
    101,903.58x = 153,027.50 × 66,425.04
  4. Step 4: Simplify right side
    101,903.58x = 10,164,857,476.47
  5. Step 5: Solve for x
    x = 10,164,857,476.47/101,903.58
  6. Step 6: Final answer
    x = 99,749.76

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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.