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Finding the Fourth Proportional to 99,724.92, 149,543.64 and 37,351.68

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Solution

The fourth proportional to 99,724.92, 149,543.64 and 37,351.68 is: 56,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,724.92 : 149,543.64 = 37,351.68 : x
  2. Step 2: Convert to fraction form
    99,724.92/149,543.64 = 37,351.68/x
  3. Step 3: Cross multiply
    99,724.92x = 149,543.64 × 37,351.68
  4. Step 4: Simplify right side
    99,724.92x = 5,585,706,187.32
  5. Step 5: Solve for x
    x = 5,585,706,187.32/99,724.92
  6. Step 6: Final answer
    x = 56,011.14

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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.