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Finding the Fourth Proportional to 122,484.54, 169,022.95 and 68,040.23

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Solution

The fourth proportional to 122,484.54, 169,022.95 and 68,040.23 is: 93,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,484.54 : 169,022.95 = 68,040.23 : x
  2. Step 2: Convert to fraction form
    122,484.54/169,022.95 = 68,040.23/x
  3. Step 3: Cross multiply
    122,484.54x = 169,022.95 × 68,040.23
  4. Step 4: Simplify right side
    122,484.54x = 11,500,361,090.23
  5. Step 5: Solve for x
    x = 11,500,361,090.23/122,484.54
  6. Step 6: Final answer
    x = 93,892.35

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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.