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Finding the Fourth Proportional to 84,193.97, 126,111.39 and 68,114.51

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Solution

The fourth proportional to 84,193.97, 126,111.39 and 68,114.51 is: 102,026.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,193.97 : 126,111.39 = 68,114.51 : x
  2. Step 2: Convert to fraction form
    84,193.97/126,111.39 = 68,114.51/x
  3. Step 3: Cross multiply
    84,193.97x = 126,111.39 × 68,114.51
  4. Step 4: Simplify right side
    84,193.97x = 8,590,014,904.71
  5. Step 5: Solve for x
    x = 8,590,014,904.71/84,193.97
  6. Step 6: Final answer
    x = 102,026.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.