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Finding the Fourth Proportional to 98,867.58, 148,238.52 and 83,879.88

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Solution

The fourth proportional to 98,867.58, 148,238.52 and 83,879.88 is: 125,766.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,867.58 : 148,238.52 = 83,879.88 : x
  2. Step 2: Convert to fraction form
    98,867.58/148,238.52 = 83,879.88/x
  3. Step 3: Cross multiply
    98,867.58x = 148,238.52 × 83,879.88
  4. Step 4: Simplify right side
    98,867.58x = 12,434,229,268.98
  5. Step 5: Solve for x
    x = 12,434,229,268.98/98,867.58
  6. Step 6: Final answer
    x = 125,766.50

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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.