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Finding the Fourth Proportional to 133,078.76, 183,649.38 and 73,462.76

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Solution

The fourth proportional to 133,078.76, 183,649.38 and 73,462.76 is: 101,378.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,078.76 : 183,649.38 = 73,462.76 : x
  2. Step 2: Convert to fraction form
    133,078.76/183,649.38 = 73,462.76/x
  3. Step 3: Cross multiply
    133,078.76x = 183,649.38 × 73,462.76
  4. Step 4: Simplify right side
    133,078.76x = 13,491,390,327.09
  5. Step 5: Solve for x
    x = 13,491,390,327.09/133,078.76
  6. Step 6: Final answer
    x = 101,378.99

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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.