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Finding the Fourth Proportional to 219,876.93, 303,436.94 and 124,381.71

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Solution

The fourth proportional to 219,876.93, 303,436.94 and 124,381.71 is: 171,650.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,876.93 : 303,436.94 = 124,381.71 : x
  2. Step 2: Convert to fraction form
    219,876.93/303,436.94 = 124,381.71/x
  3. Step 3: Cross multiply
    219,876.93x = 303,436.94 × 124,381.71
  4. Step 4: Simplify right side
    219,876.93x = 37,742,004,852.46
  5. Step 5: Solve for x
    x = 37,742,004,852.46/219,876.93
  6. Step 6: Final answer
    x = 171,650.59

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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.