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Finding the Fourth Proportional to 347,893.80, 521,811.54 and 111,172.92

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Solution

The fourth proportional to 347,893.80, 521,811.54 and 111,172.92 is: 166,750.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,893.80 : 521,811.54 = 111,172.92 : x
  2. Step 2: Convert to fraction form
    347,893.80/521,811.54 = 111,172.92/x
  3. Step 3: Cross multiply
    347,893.80x = 521,811.54 × 111,172.92
  4. Step 4: Simplify right side
    347,893.80x = 58,011,312,591.50
  5. Step 5: Solve for x
    x = 58,011,312,591.50/347,893.80
  6. Step 6: Final answer
    x = 166,750.06

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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.