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Finding the Fourth Proportional to 250,631.54, 375,969.41 and 70,718.56

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Solution

The fourth proportional to 250,631.54, 375,969.41 and 70,718.56 is: 106,084.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,631.54 : 375,969.41 = 70,718.56 : x
  2. Step 2: Convert to fraction form
    250,631.54/375,969.41 = 70,718.56/x
  3. Step 3: Cross multiply
    250,631.54x = 375,969.41 × 70,718.56
  4. Step 4: Simplify right side
    250,631.54x = 26,588,015,279.25
  5. Step 5: Solve for x
    x = 26,588,015,279.25/250,631.54
  6. Step 6: Final answer
    x = 106,084.08

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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.