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Finding the Fourth Proportional to 124,381.92, 186,599.52 and 45,495.84

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Solution

The fourth proportional to 124,381.92, 186,599.52 and 45,495.84 is: 68,253.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,381.92 : 186,599.52 = 45,495.84 : x
  2. Step 2: Convert to fraction form
    124,381.92/186,599.52 = 45,495.84/x
  3. Step 3: Cross multiply
    124,381.92x = 186,599.52 × 45,495.84
  4. Step 4: Simplify right side
    124,381.92x = 8,489,501,906.00
  5. Step 5: Solve for x
    x = 8,489,501,906.00/124,381.92
  6. Step 6: Final answer
    x = 68,253.50

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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.