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Finding the Fourth Proportional to 124,261.65, 171,483.03 and 67,672.98

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Solution

The fourth proportional to 124,261.65, 171,483.03 and 67,672.98 is: 93,389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,261.65 : 171,483.03 = 67,672.98 : x
  2. Step 2: Convert to fraction form
    124,261.65/171,483.03 = 67,672.98/x
  3. Step 3: Cross multiply
    124,261.65x = 171,483.03 × 67,672.98
  4. Step 4: Simplify right side
    124,261.65x = 11,604,767,659.53
  5. Step 5: Solve for x
    x = 11,604,767,659.53/124,261.65
  6. Step 6: Final answer
    x = 93,389.78

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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.