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Finding the Fourth Proportional to 73,182.95, 109,774.43 and 28,785.44

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Solution

The fourth proportional to 73,182.95, 109,774.43 and 28,785.44 is: 43,178.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,182.95 : 109,774.43 = 28,785.44 : x
  2. Step 2: Convert to fraction form
    73,182.95/109,774.43 = 28,785.44/x
  3. Step 3: Cross multiply
    73,182.95x = 109,774.43 × 28,785.44
  4. Step 4: Simplify right side
    73,182.95x = 3,159,905,268.30
  5. Step 5: Solve for x
    x = 3,159,905,268.30/73,182.95
  6. Step 6: Final answer
    x = 43,178.16

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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.