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Finding the Fourth Proportional to 102,901.61, 154,352.42 and 67,833.07

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Solution

The fourth proportional to 102,901.61, 154,352.42 and 67,833.07 is: 101,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,901.61 : 154,352.42 = 67,833.07 : x
  2. Step 2: Convert to fraction form
    102,901.61/154,352.42 = 67,833.07/x
  3. Step 3: Cross multiply
    102,901.61x = 154,352.42 × 67,833.07
  4. Step 4: Simplify right side
    102,901.61x = 10,470,197,399.60
  5. Step 5: Solve for x
    x = 10,470,197,399.60/102,901.61
  6. Step 6: Final answer
    x = 101,749.60

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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.