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Finding the Fourth Proportional to 124,425.48, 171,709.02 and 67,837.80

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Solution

The fourth proportional to 124,425.48, 171,709.02 and 67,837.80 is: 93,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,425.48 : 171,709.02 = 67,837.80 : x
  2. Step 2: Convert to fraction form
    124,425.48/171,709.02 = 67,837.80/x
  3. Step 3: Cross multiply
    124,425.48x = 171,709.02 × 67,837.80
  4. Step 4: Simplify right side
    124,425.48x = 11,648,362,156.96
  5. Step 5: Solve for x
    x = 11,648,362,156.96/124,425.48
  6. Step 6: Final answer
    x = 93,617.18

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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.