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Finding the Fourth Proportional to 348,069.84, 521,849.40 and 111,276.24

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Solution

The fourth proportional to 348,069.84, 521,849.40 and 111,276.24 is: 166,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,069.84 : 521,849.40 = 111,276.24 : x
  2. Step 2: Convert to fraction form
    348,069.84/521,849.40 = 111,276.24/x
  3. Step 3: Cross multiply
    348,069.84x = 521,849.40 × 111,276.24
  4. Step 4: Simplify right side
    348,069.84x = 58,069,439,078.26
  5. Step 5: Solve for x
    x = 58,069,439,078.26/348,069.84
  6. Step 6: Final answer
    x = 166,832.72

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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.