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Finding the Fourth Proportional to 124,386, 171,652.80 and 67,797.60

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Solution

The fourth proportional to 124,386, 171,652.80 and 67,797.60 is: 93,560.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,386 : 171,652.80 = 67,797.60 : x
  2. Step 2: Convert to fraction form
    124,386/171,652.80 = 67,797.60/x
  3. Step 3: Cross multiply
    124,386x = 171,652.80 × 67,797.60
  4. Step 4: Simplify right side
    124,386x = 11,637,647,873.28
  5. Step 5: Solve for x
    x = 11,637,647,873.28/124,386
  6. Step 6: Final answer
    x = 93,560.75

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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.