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Finding the Fourth Proportional to 67,543.84, 101,313.33 and 20,795.50

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Solution

The fourth proportional to 67,543.84, 101,313.33 and 20,795.50 is: 31,192.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,543.84 : 101,313.33 = 20,795.50 : x
  2. Step 2: Convert to fraction form
    67,543.84/101,313.33 = 20,795.50/x
  3. Step 3: Cross multiply
    67,543.84x = 101,313.33 × 20,795.50
  4. Step 4: Simplify right side
    67,543.84x = 2,106,861,354.02
  5. Step 5: Solve for x
    x = 2,106,861,354.02/67,543.84
  6. Step 6: Final answer
    x = 31,192.50

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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.