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Finding the Fourth Proportional to 124,501.86, 171,813.09 and 67,914.42

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Solution

The fourth proportional to 124,501.86, 171,813.09 and 67,914.42 is: 93,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,501.86 : 171,813.09 = 67,914.42 : x
  2. Step 2: Convert to fraction form
    124,501.86/171,813.09 = 67,914.42/x
  3. Step 3: Cross multiply
    124,501.86x = 171,813.09 × 67,914.42
  4. Step 4: Simplify right side
    124,501.86x = 11,668,586,355.76
  5. Step 5: Solve for x
    x = 11,668,586,355.76/124,501.86
  6. Step 6: Final answer
    x = 93,722.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.