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Finding the Fourth Proportional to 125,709.40, 188,564.02 and 36,963.64

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Solution

The fourth proportional to 125,709.40, 188,564.02 and 36,963.64 is: 55,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,709.40 : 188,564.02 = 36,963.64 : x
  2. Step 2: Convert to fraction form
    125,709.40/188,564.02 = 36,963.64/x
  3. Step 3: Cross multiply
    125,709.40x = 188,564.02 × 36,963.64
  4. Step 4: Simplify right side
    125,709.40x = 6,970,012,552.23
  5. Step 5: Solve for x
    x = 6,970,012,552.23/125,709.40
  6. Step 6: Final answer
    x = 55,445.44

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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.