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Finding the Fourth Proportional to 234,915.68, 324,183.84 and 127,485.72

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Solution

The fourth proportional to 234,915.68, 324,183.84 and 127,485.72 is: 175,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,915.68 : 324,183.84 = 127,485.72 : x
  2. Step 2: Convert to fraction form
    234,915.68/324,183.84 = 127,485.72/x
  3. Step 3: Cross multiply
    234,915.68x = 324,183.84 × 127,485.72
  4. Step 4: Simplify right side
    234,915.68x = 41,328,810,254.76
  5. Step 5: Solve for x
    x = 41,328,810,254.76/234,915.68
  6. Step 6: Final answer
    x = 175,930.40

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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.