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Finding the Fourth Proportional to 84,228.60, 116,240.80 and 48,424.20

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Solution

The fourth proportional to 84,228.60, 116,240.80 and 48,424.20 is: 66,828.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,228.60 : 116,240.80 = 48,424.20 : x
  2. Step 2: Convert to fraction form
    84,228.60/116,240.80 = 48,424.20/x
  3. Step 3: Cross multiply
    84,228.60x = 116,240.80 × 48,424.20
  4. Step 4: Simplify right side
    84,228.60x = 5,628,867,747.36
  5. Step 5: Solve for x
    x = 5,628,867,747.36/84,228.60
  6. Step 6: Final answer
    x = 66,828.46

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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.