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Finding the Fourth Proportional to 104,940.90, 157,411.35 and 57,701.70

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Solution

The fourth proportional to 104,940.90, 157,411.35 and 57,701.70 is: 86,552.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,940.90 : 157,411.35 = 57,701.70 : x
  2. Step 2: Convert to fraction form
    104,940.90/157,411.35 = 57,701.70/x
  3. Step 3: Cross multiply
    104,940.90x = 157,411.35 × 57,701.70
  4. Step 4: Simplify right side
    104,940.90x = 9,082,902,494.30
  5. Step 5: Solve for x
    x = 9,082,902,494.30/104,940.90
  6. Step 6: Final answer
    x = 86,552.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.