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Finding the Fourth Proportional to 348,113.60, 521,479.20 and 190,059.20

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Solution

The fourth proportional to 348,113.60, 521,479.20 and 190,059.20 is: 284,711.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,113.60 : 521,479.20 = 190,059.20 : x
  2. Step 2: Convert to fraction form
    348,113.60/521,479.20 = 190,059.20/x
  3. Step 3: Cross multiply
    348,113.60x = 521,479.20 × 190,059.20
  4. Step 4: Simplify right side
    348,113.60x = 99,111,919,568.64
  5. Step 5: Solve for x
    x = 99,111,919,568.64/348,113.60
  6. Step 6: Final answer
    x = 284,711.43

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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.