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Finding the Fourth Proportional to 348,021.92, 480,315.92 and 197,124

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Solution

The fourth proportional to 348,021.92, 480,315.92 and 197,124 is: 272,056.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,021.92 : 480,315.92 = 197,124 : x
  2. Step 2: Convert to fraction form
    348,021.92/480,315.92 = 197,124/x
  3. Step 3: Cross multiply
    348,021.92x = 480,315.92 × 197,124
  4. Step 4: Simplify right side
    348,021.92x = 94,681,795,414.08
  5. Step 5: Solve for x
    x = 94,681,795,414.08/348,021.92
  6. Step 6: Final answer
    x = 272,056.99

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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.