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Finding the Fourth Proportional to 122,223.87, 168,667.43 and 68,508.81

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Solution

The fourth proportional to 122,223.87, 168,667.43 and 68,508.81 is: 94,541.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,223.87 : 168,667.43 = 68,508.81 : x
  2. Step 2: Convert to fraction form
    122,223.87/168,667.43 = 68,508.81/x
  3. Step 3: Cross multiply
    122,223.87x = 168,667.43 × 68,508.81
  4. Step 4: Simplify right side
    122,223.87x = 11,555,204,572.51
  5. Step 5: Solve for x
    x = 11,555,204,572.51/122,223.87
  6. Step 6: Final answer
    x = 94,541.31

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1.5x scale

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.