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Finding the Fourth Proportional to 124,532.64, 171,855.60 and 67,945.20

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Solution

The fourth proportional to 124,532.64, 171,855.60 and 67,945.20 is: 93,764.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,532.64 : 171,855.60 = 67,945.20 : x
  2. Step 2: Convert to fraction form
    124,532.64/171,855.60 = 67,945.20/x
  3. Step 3: Cross multiply
    124,532.64x = 171,855.60 × 67,945.20
  4. Step 4: Simplify right side
    124,532.64x = 11,676,763,113.12
  5. Step 5: Solve for x
    x = 11,676,763,113.12/124,532.64
  6. Step 6: Final answer
    x = 93,764.68

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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.