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Finding the Fourth Proportional to 219,698.93, 303,180.51 and 124,205.66

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Solution

The fourth proportional to 219,698.93, 303,180.51 and 124,205.66 is: 171,401.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,698.93 : 303,180.51 = 124,205.66 : x
  2. Step 2: Convert to fraction form
    219,698.93/303,180.51 = 124,205.66/x
  3. Step 3: Cross multiply
    219,698.93x = 303,180.51 × 124,205.66
  4. Step 4: Simplify right side
    219,698.93x = 37,656,733,827.78
  5. Step 5: Solve for x
    x = 37,656,733,827.78/219,698.93
  6. Step 6: Final answer
    x = 171,401.53

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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.