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Finding the Fourth Proportional to 170,879.49, 235,793.43 and 99,247.95

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Solution

The fourth proportional to 170,879.49, 235,793.43 and 99,247.95 is: 136,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,879.49 : 235,793.43 = 99,247.95 : x
  2. Step 2: Convert to fraction form
    170,879.49/235,793.43 = 99,247.95/x
  3. Step 3: Cross multiply
    170,879.49x = 235,793.43 × 99,247.95
  4. Step 4: Simplify right side
    170,879.49x = 23,402,014,550.97
  5. Step 5: Solve for x
    x = 23,402,014,550.97/170,879.49
  6. Step 6: Final answer
    x = 136,950.40

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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.