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Finding the Fourth Proportional to 348,043.80, 521,628.30 and 170,167.80

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Solution

The fourth proportional to 348,043.80, 521,628.30 and 170,167.80 is: 255,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,043.80 : 521,628.30 = 170,167.80 : x
  2. Step 2: Convert to fraction form
    348,043.80/521,628.30 = 170,167.80/x
  3. Step 3: Cross multiply
    348,043.80x = 521,628.30 × 170,167.80
  4. Step 4: Simplify right side
    348,043.80x = 88,764,340,228.74
  5. Step 5: Solve for x
    x = 88,764,340,228.74/348,043.80
  6. Step 6: Final answer
    x = 255,037.84

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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.