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Finding the Fourth Proportional to 122,041.77, 168,409.67 and 68,326.29

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Solution

The fourth proportional to 122,041.77, 168,409.67 and 68,326.29 is: 94,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,041.77 : 168,409.67 = 68,326.29 : x
  2. Step 2: Convert to fraction form
    122,041.77/168,409.67 = 68,326.29/x
  3. Step 3: Cross multiply
    122,041.77x = 168,409.67 × 68,326.29
  4. Step 4: Simplify right side
    122,041.77x = 11,506,807,609.59
  5. Step 5: Solve for x
    x = 11,506,807,609.59/122,041.77
  6. Step 6: Final answer
    x = 94,285.81

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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.