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Finding the Fourth Proportional to 124,368.71, 186,553.05 and 30,874.46

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Solution

The fourth proportional to 124,368.71, 186,553.05 and 30,874.46 is: 46,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,368.71 : 186,553.05 = 30,874.46 : x
  2. Step 2: Convert to fraction form
    124,368.71/186,553.05 = 30,874.46/x
  3. Step 3: Cross multiply
    124,368.71x = 186,553.05 × 30,874.46
  4. Step 4: Simplify right side
    124,368.71x = 5,759,723,747.34
  5. Step 5: Solve for x
    x = 5,759,723,747.34/124,368.71
  6. Step 6: Final answer
    x = 46,311.68

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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.