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Finding the Fourth Proportional to 104,543.88, 156,842.22 and 45,365.16

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Solution

The fourth proportional to 104,543.88, 156,842.22 and 45,365.16 is: 68,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,543.88 : 156,842.22 = 45,365.16 : x
  2. Step 2: Convert to fraction form
    104,543.88/156,842.22 = 45,365.16/x
  3. Step 3: Cross multiply
    104,543.88x = 156,842.22 × 45,365.16
  4. Step 4: Simplify right side
    104,543.88x = 7,115,172,405.06
  5. Step 5: Solve for x
    x = 7,115,172,405.06/104,543.88
  6. Step 6: Final answer
    x = 68,059.20

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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.