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Finding the Fourth Proportional to 122,812.63, 169,480.23 and 68,363.93

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Solution

The fourth proportional to 122,812.63, 169,480.23 and 68,363.93 is: 94,341.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,812.63 : 169,480.23 = 68,363.93 : x
  2. Step 2: Convert to fraction form
    122,812.63/169,480.23 = 68,363.93/x
  3. Step 3: Cross multiply
    122,812.63x = 169,480.23 × 68,363.93
  4. Step 4: Simplify right side
    122,812.63x = 11,586,334,238.28
  5. Step 5: Solve for x
    x = 11,586,334,238.28/122,812.63
  6. Step 6: Final answer
    x = 94,341.56

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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.