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Finding the Fourth Proportional to 101,166.70, 151,750.05 and 69,673.90

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Solution

The fourth proportional to 101,166.70, 151,750.05 and 69,673.90 is: 104,510.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,166.70 : 151,750.05 = 69,673.90 : x
  2. Step 2: Convert to fraction form
    101,166.70/151,750.05 = 69,673.90/x
  3. Step 3: Cross multiply
    101,166.70x = 151,750.05 × 69,673.90
  4. Step 4: Simplify right side
    101,166.70x = 10,573,017,808.70
  5. Step 5: Solve for x
    x = 10,573,017,808.70/101,166.70
  6. Step 6: Final answer
    x = 104,510.85

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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.