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Finding the Fourth Proportional to 91,164.69, 125,813.58 and 50,886.31

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Solution

The fourth proportional to 91,164.69, 125,813.58 and 50,886.31 is: 70,226.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,164.69 : 125,813.58 = 50,886.31 : x
  2. Step 2: Convert to fraction form
    91,164.69/125,813.58 = 50,886.31/x
  3. Step 3: Cross multiply
    91,164.69x = 125,813.58 × 50,886.31
  4. Step 4: Simplify right side
    91,164.69x = 6,402,188,834.09
  5. Step 5: Solve for x
    x = 6,402,188,834.09/91,164.69
  6. Step 6: Final answer
    x = 70,226.63

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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.