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Finding the Fourth Proportional to 143,663.94, 215,444.07 and 60,564.42

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Solution

The fourth proportional to 143,663.94, 215,444.07 and 60,564.42 is: 90,824.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,663.94 : 215,444.07 = 60,564.42 : x
  2. Step 2: Convert to fraction form
    143,663.94/215,444.07 = 60,564.42/x
  3. Step 3: Cross multiply
    143,663.94x = 215,444.07 × 60,564.42
  4. Step 4: Simplify right side
    143,663.94x = 13,048,245,141.99
  5. Step 5: Solve for x
    x = 13,048,245,141.99/143,663.94
  6. Step 6: Final answer
    x = 90,824.78

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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.