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Finding the Fourth Proportional to 265,342.39, 366,123.86 and 156,480.88

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Solution

The fourth proportional to 265,342.39, 366,123.86 and 156,480.88 is: 215,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,342.39 : 366,123.86 = 156,480.88 : x
  2. Step 2: Convert to fraction form
    265,342.39/366,123.86 = 156,480.88/x
  3. Step 3: Cross multiply
    265,342.39x = 366,123.86 × 156,480.88
  4. Step 4: Simplify right side
    265,342.39x = 57,291,383,801.80
  5. Step 5: Solve for x
    x = 57,291,383,801.80/265,342.39
  6. Step 6: Final answer
    x = 215,914.93

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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.