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Finding the Fourth Proportional to 156,684.90, 235,027.35 and 125,580.90

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Solution

The fourth proportional to 156,684.90, 235,027.35 and 125,580.90 is: 188,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,684.90 : 235,027.35 = 125,580.90 : x
  2. Step 2: Convert to fraction form
    156,684.90/235,027.35 = 125,580.90/x
  3. Step 3: Cross multiply
    156,684.90x = 235,027.35 × 125,580.90
  4. Step 4: Simplify right side
    156,684.90x = 29,514,946,137.62
  5. Step 5: Solve for x
    x = 29,514,946,137.62/156,684.90
  6. Step 6: Final answer
    x = 188,371.35

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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.