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Finding the Fourth Proportional to 203,746.60, 305,498.40 and 124,917.40

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Solution

The fourth proportional to 203,746.60, 305,498.40 and 124,917.40 is: 187,301.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,746.60 : 305,498.40 = 124,917.40 : x
  2. Step 2: Convert to fraction form
    203,746.60/305,498.40 = 124,917.40/x
  3. Step 3: Cross multiply
    203,746.60x = 305,498.40 × 124,917.40
  4. Step 4: Simplify right side
    203,746.60x = 38,162,065,832.16
  5. Step 5: Solve for x
    x = 38,162,065,832.16/203,746.60
  6. Step 6: Final answer
    x = 187,301.61

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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.