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Finding the Fourth Proportional to 92,712.33, 127,660.86 and 84,162.51

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Solution

The fourth proportional to 92,712.33, 127,660.86 and 84,162.51 is: 115,888.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,712.33 : 127,660.86 = 84,162.51 : x
  2. Step 2: Convert to fraction form
    92,712.33/127,660.86 = 84,162.51/x
  3. Step 3: Cross multiply
    92,712.33x = 127,660.86 × 84,162.51
  4. Step 4: Simplify right side
    92,712.33x = 10,744,258,406.36
  5. Step 5: Solve for x
    x = 10,744,258,406.36/92,712.33
  6. Step 6: Final answer
    x = 115,888.13

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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.