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Finding the Fourth Proportional to 245,423.22, 368,142.96 and 67,915.32

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Solution

The fourth proportional to 245,423.22, 368,142.96 and 67,915.32 is: 101,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,423.22 : 368,142.96 = 67,915.32 : x
  2. Step 2: Convert to fraction form
    245,423.22/368,142.96 = 67,915.32/x
  3. Step 3: Cross multiply
    245,423.22x = 368,142.96 × 67,915.32
  4. Step 4: Simplify right side
    245,423.22x = 25,002,546,934.15
  5. Step 5: Solve for x
    x = 25,002,546,934.15/245,423.22
  6. Step 6: Final answer
    x = 101,875.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.