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Finding the Fourth Proportional to 124,538.49, 171,862.23 and 70,823.49

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Solution

The fourth proportional to 124,538.49, 171,862.23 and 70,823.49 is: 97,735.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,538.49 : 171,862.23 = 70,823.49 : x
  2. Step 2: Convert to fraction form
    124,538.49/171,862.23 = 70,823.49/x
  3. Step 3: Cross multiply
    124,538.49x = 171,862.23 × 70,823.49
  4. Step 4: Simplify right side
    124,538.49x = 12,171,882,927.78
  5. Step 5: Solve for x
    x = 12,171,882,927.78/124,538.49
  6. Step 6: Final answer
    x = 97,735.91

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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.