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Finding the Fourth Proportional to 104,981.80, 157,494.30 and 34,911.40

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Solution

The fourth proportional to 104,981.80, 157,494.30 and 34,911.40 is: 52,374.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,981.80 : 157,494.30 = 34,911.40 : x
  2. Step 2: Convert to fraction form
    104,981.80/157,494.30 = 34,911.40/x
  3. Step 3: Cross multiply
    104,981.80x = 157,494.30 × 34,911.40
  4. Step 4: Simplify right side
    104,981.80x = 5,498,346,505.02
  5. Step 5: Solve for x
    x = 5,498,346,505.02/104,981.80
  6. Step 6: Final answer
    x = 52,374.28

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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.