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Finding the Fourth Proportional to 228,573.96, 315,587.93 and 142,566.54

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Solution

The fourth proportional to 228,573.96, 315,587.93 and 142,566.54 is: 196,839.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,573.96 : 315,587.93 = 142,566.54 : x
  2. Step 2: Convert to fraction form
    228,573.96/315,587.93 = 142,566.54/x
  3. Step 3: Cross multiply
    228,573.96x = 315,587.93 × 142,566.54
  4. Step 4: Simplify right side
    228,573.96x = 44,992,278,533.03
  5. Step 5: Solve for x
    x = 44,992,278,533.03/228,573.96
  6. Step 6: Final answer
    x = 196,839.04

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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.