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Finding the Fourth Proportional to 124,513, 171,827.94 and 79,801

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Solution

The fourth proportional to 124,513, 171,827.94 and 79,801 is: 110,125.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,513 : 171,827.94 = 79,801 : x
  2. Step 2: Convert to fraction form
    124,513/171,827.94 = 79,801/x
  3. Step 3: Cross multiply
    124,513x = 171,827.94 × 79,801
  4. Step 4: Simplify right side
    124,513x = 13,712,041,439.94
  5. Step 5: Solve for x
    x = 13,712,041,439.94/124,513
  6. Step 6: Final answer
    x = 110,125.38

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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.