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Finding the Fourth Proportional to 99,979.43, 150,007.03 and 60,026.32

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Solution

The fourth proportional to 99,979.43, 150,007.03 and 60,026.32 is: 90,062.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,979.43 : 150,007.03 = 60,026.32 : x
  2. Step 2: Convert to fraction form
    99,979.43/150,007.03 = 60,026.32/x
  3. Step 3: Cross multiply
    99,979.43x = 150,007.03 × 60,026.32
  4. Step 4: Simplify right side
    99,979.43x = 9,004,369,459.95
  5. Step 5: Solve for x
    x = 9,004,369,459.95/99,979.43
  6. Step 6: Final answer
    x = 90,062.22

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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.