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Finding the Fourth Proportional to 215,173.26, 322,756.25 and 74,928.24

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Solution

The fourth proportional to 215,173.26, 322,756.25 and 74,928.24 is: 112,391.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,173.26 : 322,756.25 = 74,928.24 : x
  2. Step 2: Convert to fraction form
    215,173.26/322,756.25 = 74,928.24/x
  3. Step 3: Cross multiply
    215,173.26x = 322,756.25 × 74,928.24
  4. Step 4: Simplify right side
    215,173.26x = 24,183,557,386.86
  5. Step 5: Solve for x
    x = 24,183,557,386.86/215,173.26
  6. Step 6: Final answer
    x = 112,391.09

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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.