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Finding the Fourth Proportional to 125,442.92, 188,848.87 and 114,420.52

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Solution

The fourth proportional to 125,442.92, 188,848.87 and 114,420.52 is: 172,255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,442.92 : 188,848.87 = 114,420.52 : x
  2. Step 2: Convert to fraction form
    125,442.92/188,848.87 = 114,420.52/x
  3. Step 3: Cross multiply
    125,442.92x = 188,848.87 × 114,420.52
  4. Step 4: Simplify right side
    125,442.92x = 21,608,185,906.81
  5. Step 5: Solve for x
    x = 21,608,185,906.81/125,442.92
  6. Step 6: Final answer
    x = 172,255.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.