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Finding the Fourth Proportional to 228,573.76, 315,358.48 and 148,063

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Solution

The fourth proportional to 228,573.76, 315,358.48 and 148,063 is: 204,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,573.76 : 315,358.48 = 148,063 : x
  2. Step 2: Convert to fraction form
    228,573.76/315,358.48 = 148,063/x
  3. Step 3: Cross multiply
    228,573.76x = 315,358.48 × 148,063
  4. Step 4: Simplify right side
    228,573.76x = 46,692,922,624.24
  5. Step 5: Solve for x
    x = 46,692,922,624.24/228,573.76
  6. Step 6: Final answer
    x = 204,279.45

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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.