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Finding the Fourth Proportional to 125,642.04, 188,433.88 and 36,871.72

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Solution

The fourth proportional to 125,642.04, 188,433.88 and 36,871.72 is: 55,299.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,642.04 : 188,433.88 = 36,871.72 : x
  2. Step 2: Convert to fraction form
    125,642.04/188,433.88 = 36,871.72/x
  3. Step 3: Cross multiply
    125,642.04x = 188,433.88 × 36,871.72
  4. Step 4: Simplify right side
    125,642.04x = 6,947,881,261.87
  5. Step 5: Solve for x
    x = 6,947,881,261.87/125,642.04
  6. Step 6: Final answer
    x = 55,299.02

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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.