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Finding the Fourth Proportional to 124,512, 171,826.56 and 79,800

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Solution

The fourth proportional to 124,512, 171,826.56 and 79,800 is: 110,124

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,512 : 171,826.56 = 79,800 : x
  2. Step 2: Convert to fraction form
    124,512/171,826.56 = 79,800/x
  3. Step 3: Cross multiply
    124,512x = 171,826.56 × 79,800
  4. Step 4: Simplify right side
    124,512x = 13,711,759,488
  5. Step 5: Solve for x
    x = 13,711,759,488/124,512
  6. Step 6: Final answer
    x = 110,124

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