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Finding the Fourth Proportional to 99,467.65, 137,263.95 and 54,146.01

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Solution

The fourth proportional to 99,467.65, 137,263.95 and 54,146.01 is: 74,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,467.65 : 137,263.95 = 54,146.01 : x
  2. Step 2: Convert to fraction form
    99,467.65/137,263.95 = 54,146.01/x
  3. Step 3: Cross multiply
    99,467.65x = 137,263.95 × 54,146.01
  4. Step 4: Simplify right side
    99,467.65x = 7,432,295,338.02
  5. Step 5: Solve for x
    x = 7,432,295,338.02/99,467.65
  6. Step 6: Final answer
    x = 74,720.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.