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Finding the Fourth Proportional to 91,182.58, 125,838.30 and 50,904.25

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Solution

The fourth proportional to 91,182.58, 125,838.30 and 50,904.25 is: 70,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,182.58 : 125,838.30 = 50,904.25 : x
  2. Step 2: Convert to fraction form
    91,182.58/125,838.30 = 50,904.25/x
  3. Step 3: Cross multiply
    91,182.58x = 125,838.30 × 50,904.25
  4. Step 4: Simplify right side
    91,182.58x = 6,405,704,282.78
  5. Step 5: Solve for x
    x = 6,405,704,282.78/91,182.58
  6. Step 6: Final answer
    x = 70,251.40

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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.