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Finding the Fourth Proportional to 147,627, 221,441.31 and 36,819

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Solution

The fourth proportional to 147,627, 221,441.31 and 36,819 is: 55,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,627 : 221,441.31 = 36,819 : x
  2. Step 2: Convert to fraction form
    147,627/221,441.31 = 36,819/x
  3. Step 3: Cross multiply
    147,627x = 221,441.31 × 36,819
  4. Step 4: Simplify right side
    147,627x = 8,153,247,592.89
  5. Step 5: Solve for x
    x = 8,153,247,592.89/147,627
  6. Step 6: Final answer
    x = 55,228.70

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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.