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Finding the Fourth Proportional to 352,611.56, 528,455.30 and 163,047.86

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Solution

The fourth proportional to 352,611.56, 528,455.30 and 163,047.86 is: 244,358.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,611.56 : 528,455.30 = 163,047.86 : x
  2. Step 2: Convert to fraction form
    352,611.56/528,455.30 = 163,047.86/x
  3. Step 3: Cross multiply
    352,611.56x = 528,455.30 × 163,047.86
  4. Step 4: Simplify right side
    352,611.56x = 86,163,505,770.66
  5. Step 5: Solve for x
    x = 86,163,505,770.66/352,611.56
  6. Step 6: Final answer
    x = 244,358.14

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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.