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Finding the Fourth Proportional to 147,507.87, 221,261.85 and 36,699.87

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Solution

The fourth proportional to 147,507.87, 221,261.85 and 36,699.87 is: 55,049.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,507.87 : 221,261.85 = 36,699.87 : x
  2. Step 2: Convert to fraction form
    147,507.87/221,261.85 = 36,699.87/x
  3. Step 3: Cross multiply
    147,507.87x = 221,261.85 × 36,699.87
  4. Step 4: Simplify right side
    147,507.87x = 8,120,281,130.96
  5. Step 5: Solve for x
    x = 8,120,281,130.96/147,507.87
  6. Step 6: Final answer
    x = 55,049.82

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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.