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Finding the Fourth Proportional to 75,463.28, 113,194.80 and 20,059.28

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Solution

The fourth proportional to 75,463.28, 113,194.80 and 20,059.28 is: 30,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,463.28 : 113,194.80 = 20,059.28 : x
  2. Step 2: Convert to fraction form
    75,463.28/113,194.80 = 20,059.28/x
  3. Step 3: Cross multiply
    75,463.28x = 113,194.80 × 20,059.28
  4. Step 4: Simplify right side
    75,463.28x = 2,270,606,187.74
  5. Step 5: Solve for x
    x = 2,270,606,187.74/75,463.28
  6. Step 6: Final answer
    x = 30,088.89

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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.