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Finding the Fourth Proportional to 207,240.84, 310,861.31 and 74,113.02

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Solution

The fourth proportional to 207,240.84, 310,861.31 and 74,113.02 is: 111,169.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,240.84 : 310,861.31 = 74,113.02 : x
  2. Step 2: Convert to fraction form
    207,240.84/310,861.31 = 74,113.02/x
  3. Step 3: Cross multiply
    207,240.84x = 310,861.31 × 74,113.02
  4. Step 4: Simplify right side
    207,240.84x = 23,038,870,114.69
  5. Step 5: Solve for x
    x = 23,038,870,114.69/207,240.84
  6. Step 6: Final answer
    x = 111,169.55

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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.