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Finding the Fourth Proportional to 124,385.68, 171,647.67 and 67,795.84

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Solution

The fourth proportional to 124,385.68, 171,647.67 and 67,795.84 is: 93,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,385.68 : 171,647.67 = 67,795.84 : x
  2. Step 2: Convert to fraction form
    124,385.68/171,647.67 = 67,795.84/x
  3. Step 3: Cross multiply
    124,385.68x = 171,647.67 × 67,795.84
  4. Step 4: Simplify right side
    124,385.68x = 11,636,997,971.69
  5. Step 5: Solve for x
    x = 11,636,997,971.69/124,385.68
  6. Step 6: Final answer
    x = 93,555.77

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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.