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Finding the Fourth Proportional to 124,554.81, 171,889.80 and 67,969.29

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Solution

The fourth proportional to 124,554.81, 171,889.80 and 67,969.29 is: 93,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,554.81 : 171,889.80 = 67,969.29 : x
  2. Step 2: Convert to fraction form
    124,554.81/171,889.80 = 67,969.29/x
  3. Step 3: Cross multiply
    124,554.81x = 171,889.80 × 67,969.29
  4. Step 4: Simplify right side
    124,554.81x = 11,683,227,664.24
  5. Step 5: Solve for x
    x = 11,683,227,664.24/124,554.81
  6. Step 6: Final answer
    x = 93,799.89

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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.