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Finding the Fourth Proportional to 124,522.75, 171,841.41 and 79,810.75

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Solution

The fourth proportional to 124,522.75, 171,841.41 and 79,810.75 is: 110,138.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,522.75 : 171,841.41 = 79,810.75 : x
  2. Step 2: Convert to fraction form
    124,522.75/171,841.41 = 79,810.75/x
  3. Step 3: Cross multiply
    124,522.75x = 171,841.41 × 79,810.75
  4. Step 4: Simplify right side
    124,522.75x = 13,714,791,813.16
  5. Step 5: Solve for x
    x = 13,714,791,813.16/124,522.75
  6. Step 6: Final answer
    x = 110,138.84

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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.