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Finding the Fourth Proportional to 103,893.17, 156,121.13 and 56,543.27

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Solution

The fourth proportional to 103,893.17, 156,121.13 and 56,543.27 is: 84,968.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,893.17 : 156,121.13 = 56,543.27 : x
  2. Step 2: Convert to fraction form
    103,893.17/156,121.13 = 56,543.27/x
  3. Step 3: Cross multiply
    103,893.17x = 156,121.13 × 56,543.27
  4. Step 4: Simplify right side
    103,893.17x = 8,827,598,567.05
  5. Step 5: Solve for x
    x = 8,827,598,567.05/103,893.17
  6. Step 6: Final answer
    x = 84,968.04

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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.