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Finding the Fourth Proportional to 265,308.11, 366,248.59 and 156,378.09

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Solution

The fourth proportional to 265,308.11, 366,248.59 and 156,378.09 is: 215,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,308.11 : 366,248.59 = 156,378.09 : x
  2. Step 2: Convert to fraction form
    265,308.11/366,248.59 = 156,378.09/x
  3. Step 3: Cross multiply
    265,308.11x = 366,248.59 × 156,378.09
  4. Step 4: Simplify right side
    265,308.11x = 57,273,255,951.88
  5. Step 5: Solve for x
    x = 57,273,255,951.88/265,308.11
  6. Step 6: Final answer
    x = 215,874.50

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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.