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Finding the Fourth Proportional to 101,038.70, 151,543.65 and 34,481.90

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Solution

The fourth proportional to 101,038.70, 151,543.65 and 34,481.90 is: 51,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,038.70 : 151,543.65 = 34,481.90 : x
  2. Step 2: Convert to fraction form
    101,038.70/151,543.65 = 34,481.90/x
  3. Step 3: Cross multiply
    101,038.70x = 151,543.65 × 34,481.90
  4. Step 4: Simplify right side
    101,038.70x = 5,225,512,984.94
  5. Step 5: Solve for x
    x = 5,225,512,984.94/101,038.70
  6. Step 6: Final answer
    x = 51,717.94

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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.