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Finding the Fourth Proportional to 99,964.13, 150,019.90 and 47,373.66

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Solution

The fourth proportional to 99,964.13, 150,019.90 and 47,373.66 is: 71,095.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,964.13 : 150,019.90 = 47,373.66 : x
  2. Step 2: Convert to fraction form
    99,964.13/150,019.90 = 47,373.66/x
  3. Step 3: Cross multiply
    99,964.13x = 150,019.90 × 47,373.66
  4. Step 4: Simplify right side
    99,964.13x = 7,106,991,617.40
  5. Step 5: Solve for x
    x = 7,106,991,617.40/99,964.13
  6. Step 6: Final answer
    x = 71,095.42

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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.