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Finding the Fourth Proportional to 109,451.90, 151,043.64 and 59,150.90

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Solution

The fourth proportional to 109,451.90, 151,043.64 and 59,150.90 is: 81,628.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,451.90 : 151,043.64 = 59,150.90 : x
  2. Step 2: Convert to fraction form
    109,451.90/151,043.64 = 59,150.90/x
  3. Step 3: Cross multiply
    109,451.90x = 151,043.64 × 59,150.90
  4. Step 4: Simplify right side
    109,451.90x = 8,934,367,245.28
  5. Step 5: Solve for x
    x = 8,934,367,245.28/109,451.90
  6. Step 6: Final answer
    x = 81,628.25

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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.