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Finding the Fourth Proportional to 173,634.40, 260,305.80 and 90,528.40

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Solution

The fourth proportional to 173,634.40, 260,305.80 and 90,528.40 is: 135,716.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,634.40 : 260,305.80 = 90,528.40 : x
  2. Step 2: Convert to fraction form
    173,634.40/260,305.80 = 90,528.40/x
  3. Step 3: Cross multiply
    173,634.40x = 260,305.80 × 90,528.40
  4. Step 4: Simplify right side
    173,634.40x = 23,565,067,584.72
  5. Step 5: Solve for x
    x = 23,565,067,584.72/173,634.40
  6. Step 6: Final answer
    x = 135,716.58

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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.