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Finding the Fourth Proportional to 115,955.53, 173,998.95 and 49,388.74

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Solution

The fourth proportional to 115,955.53, 173,998.95 and 49,388.74 is: 74,111.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,955.53 : 173,998.95 = 49,388.74 : x
  2. Step 2: Convert to fraction form
    115,955.53/173,998.95 = 49,388.74/x
  3. Step 3: Cross multiply
    115,955.53x = 173,998.95 × 49,388.74
  4. Step 4: Simplify right side
    115,955.53x = 8,593,588,901.82
  5. Step 5: Solve for x
    x = 8,593,588,901.82/115,955.53
  6. Step 6: Final answer
    x = 74,111.07

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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.