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Finding the Fourth Proportional to 125,354.18, 188,012.72 and 36,583.86

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Solution

The fourth proportional to 125,354.18, 188,012.72 and 36,583.86 is: 54,870.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,354.18 : 188,012.72 = 36,583.86 : x
  2. Step 2: Convert to fraction form
    125,354.18/188,012.72 = 36,583.86/x
  3. Step 3: Cross multiply
    125,354.18x = 188,012.72 × 36,583.86
  4. Step 4: Simplify right side
    125,354.18x = 6,878,231,026.70
  5. Step 5: Solve for x
    x = 6,878,231,026.70/125,354.18
  6. Step 6: Final answer
    x = 54,870.38

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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.