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Finding the Fourth Proportional to 143,477, 215,250.08 and 44,981

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Solution

The fourth proportional to 143,477, 215,250.08 and 44,981 is: 67,482.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,477 : 215,250.08 = 44,981 : x
  2. Step 2: Convert to fraction form
    143,477/215,250.08 = 44,981/x
  3. Step 3: Cross multiply
    143,477x = 215,250.08 × 44,981
  4. Step 4: Simplify right side
    143,477x = 9,682,163,848.48
  5. Step 5: Solve for x
    x = 9,682,163,848.48/143,477
  6. Step 6: Final answer
    x = 67,482.34

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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.