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Finding the Fourth Proportional to 219,752.74, 303,265.16 and 124,257.39

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Solution

The fourth proportional to 219,752.74, 303,265.16 and 124,257.39 is: 171,478.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,752.74 : 303,265.16 = 124,257.39 : x
  2. Step 2: Convert to fraction form
    219,752.74/303,265.16 = 124,257.39/x
  3. Step 3: Cross multiply
    219,752.74x = 303,265.16 × 124,257.39
  4. Step 4: Simplify right side
    219,752.74x = 37,682,937,259.53
  5. Step 5: Solve for x
    x = 37,682,937,259.53/219,752.74
  6. Step 6: Final answer
    x = 171,478.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.