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Finding the Fourth Proportional to 349,351.70, 524,138.32 and 124,707.31

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Solution

The fourth proportional to 349,351.70, 524,138.32 and 124,707.31 is: 187,100.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,351.70 : 524,138.32 = 124,707.31 : x
  2. Step 2: Convert to fraction form
    349,351.70/524,138.32 = 124,707.31/x
  3. Step 3: Cross multiply
    349,351.70x = 524,138.32 × 124,707.31
  4. Step 4: Simplify right side
    349,351.70x = 65,363,880,064.70
  5. Step 5: Solve for x
    x = 65,363,880,064.70/349,351.70
  6. Step 6: Final answer
    x = 187,100.51

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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.