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Finding the Fourth Proportional to 99,963.96, 150,020.16 and 47,373.60

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Solution

The fourth proportional to 99,963.96, 150,020.16 and 47,373.60 is: 71,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,963.96 : 150,020.16 = 47,373.60 : x
  2. Step 2: Convert to fraction form
    99,963.96/150,020.16 = 47,373.60/x
  3. Step 3: Cross multiply
    99,963.96x = 150,020.16 × 47,373.60
  4. Step 4: Simplify right side
    99,963.96x = 7,106,995,051.78
  5. Step 5: Solve for x
    x = 7,106,995,051.78/99,963.96
  6. Step 6: Final answer
    x = 71,095.57

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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.