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Finding the Fourth Proportional to 84,351.51, 116,410.10 and 48,540.74

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Solution

The fourth proportional to 84,351.51, 116,410.10 and 48,540.74 is: 66,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,351.51 : 116,410.10 = 48,540.74 : x
  2. Step 2: Convert to fraction form
    84,351.51/116,410.10 = 48,540.74/x
  3. Step 3: Cross multiply
    84,351.51x = 116,410.10 × 48,540.74
  4. Step 4: Simplify right side
    84,351.51x = 5,650,631,572.72
  5. Step 5: Solve for x
    x = 5,650,631,572.72/84,351.51
  6. Step 6: Final answer
    x = 66,989.10

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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.