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Finding the Fourth Proportional to 302,571.36, 453,856.32 and 80,955.36

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Solution

The fourth proportional to 302,571.36, 453,856.32 and 80,955.36 is: 121,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,571.36 : 453,856.32 = 80,955.36 : x
  2. Step 2: Convert to fraction form
    302,571.36/453,856.32 = 80,955.36/x
  3. Step 3: Cross multiply
    302,571.36x = 453,856.32 × 80,955.36
  4. Step 4: Simplify right side
    302,571.36x = 36,742,101,773.88
  5. Step 5: Solve for x
    x = 36,742,101,773.88/302,571.36
  6. Step 6: Final answer
    x = 121,432.85

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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.