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Finding the Fourth Proportional to 125,458.80, 188,215.20 and 36,705.48

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Solution

The fourth proportional to 125,458.80, 188,215.20 and 36,705.48 is: 55,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,458.80 : 188,215.20 = 36,705.48 : x
  2. Step 2: Convert to fraction form
    125,458.80/188,215.20 = 36,705.48/x
  3. Step 3: Cross multiply
    125,458.80x = 188,215.20 × 36,705.48
  4. Step 4: Simplify right side
    125,458.80x = 6,908,529,259.30
  5. Step 5: Solve for x
    x = 6,908,529,259.30/125,458.80
  6. Step 6: Final answer
    x = 55,066.12

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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.