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Finding the Fourth Proportional to 99,712.95, 149,525.64 and 37,339.71

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Solution

The fourth proportional to 99,712.95, 149,525.64 and 37,339.71 is: 55,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,712.95 : 149,525.64 = 37,339.71 : x
  2. Step 2: Convert to fraction form
    99,712.95/149,525.64 = 37,339.71/x
  3. Step 3: Cross multiply
    99,712.95x = 149,525.64 × 37,339.71
  4. Step 4: Simplify right side
    99,712.95x = 5,583,244,035.16
  5. Step 5: Solve for x
    x = 5,583,244,035.16/99,712.95
  6. Step 6: Final answer
    x = 55,993.17

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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.