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Finding the Fourth Proportional to 124,171, 171,355.99 and 67,582.78

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Solution

The fourth proportional to 124,171, 171,355.99 and 67,582.78 is: 93,264.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,171 : 171,355.99 = 67,582.78 : x
  2. Step 2: Convert to fraction form
    124,171/171,355.99 = 67,582.78/x
  3. Step 3: Cross multiply
    124,171x = 171,355.99 × 67,582.78
  4. Step 4: Simplify right side
    124,171x = 11,580,714,173.85
  5. Step 5: Solve for x
    x = 11,580,714,173.85/124,171
  6. Step 6: Final answer
    x = 93,264.24

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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.