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Finding the Fourth Proportional to 104,976.90, 157,465.35 and 65,027.70

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Solution

The fourth proportional to 104,976.90, 157,465.35 and 65,027.70 is: 97,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,976.90 : 157,465.35 = 65,027.70 : x
  2. Step 2: Convert to fraction form
    104,976.90/157,465.35 = 65,027.70/x
  3. Step 3: Cross multiply
    104,976.90x = 157,465.35 × 65,027.70
  4. Step 4: Simplify right side
    104,976.90x = 10,239,609,540.20
  5. Step 5: Solve for x
    x = 10,239,609,540.20/104,976.90
  6. Step 6: Final answer
    x = 97,541.55

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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.