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Finding the Fourth Proportional to 149,360.70, 206,193.95 and 101,216.97

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Solution

The fourth proportional to 149,360.70, 206,193.95 and 101,216.97 is: 139,731.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,360.70 : 206,193.95 = 101,216.97 : x
  2. Step 2: Convert to fraction form
    149,360.70/206,193.95 = 101,216.97/x
  3. Step 3: Cross multiply
    149,360.70x = 206,193.95 × 101,216.97
  4. Step 4: Simplify right side
    149,360.70x = 20,870,326,345.25
  5. Step 5: Solve for x
    x = 20,870,326,345.25/149,360.70
  6. Step 6: Final answer
    x = 139,731.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.