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Finding the Fourth Proportional to 124,388.64, 171,658.44 and 67,803.12

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Solution

The fourth proportional to 124,388.64, 171,658.44 and 67,803.12 is: 93,569.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,388.64 : 171,658.44 = 67,803.12 : x
  2. Step 2: Convert to fraction form
    124,388.64/171,658.44 = 67,803.12/x
  3. Step 3: Cross multiply
    124,388.64x = 171,658.44 × 67,803.12
  4. Step 4: Simplify right side
    124,388.64x = 11,638,977,806.33
  5. Step 5: Solve for x
    x = 11,638,977,806.33/124,388.64
  6. Step 6: Final answer
    x = 93,569.46

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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.