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Finding the Fourth Proportional to 151,486.60, 209,067.06 and 91,076.92

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Solution

The fourth proportional to 151,486.60, 209,067.06 and 91,076.92 is: 125,695.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,486.60 : 209,067.06 = 91,076.92 : x
  2. Step 2: Convert to fraction form
    151,486.60/209,067.06 = 91,076.92/x
  3. Step 3: Cross multiply
    151,486.60x = 209,067.06 × 91,076.92
  4. Step 4: Simplify right side
    151,486.60x = 19,041,183,898.26
  5. Step 5: Solve for x
    x = 19,041,183,898.26/151,486.60
  6. Step 6: Final answer
    x = 125,695.50

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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.