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Finding the Fourth Proportional to 124,120.86, 171,288.54 and 67,532.28

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Solution

The fourth proportional to 124,120.86, 171,288.54 and 67,532.28 is: 93,195.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,120.86 : 171,288.54 = 67,532.28 : x
  2. Step 2: Convert to fraction form
    124,120.86/171,288.54 = 67,532.28/x
  3. Step 3: Cross multiply
    124,120.86x = 171,288.54 × 67,532.28
  4. Step 4: Simplify right side
    124,120.86x = 11,567,505,644.07
  5. Step 5: Solve for x
    x = 11,567,505,644.07/124,120.86
  6. Step 6: Final answer
    x = 93,195.50

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1.5x scale

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.