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Finding the Fourth Proportional to 97,108.56, 134,051.28 and 65,295.90

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Solution

The fourth proportional to 97,108.56, 134,051.28 and 65,295.90 is: 90,136.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,108.56 : 134,051.28 = 65,295.90 : x
  2. Step 2: Convert to fraction form
    97,108.56/134,051.28 = 65,295.90/x
  3. Step 3: Cross multiply
    97,108.56x = 134,051.28 × 65,295.90
  4. Step 4: Simplify right side
    97,108.56x = 8,752,998,973.75
  5. Step 5: Solve for x
    x = 8,752,998,973.75/97,108.56
  6. Step 6: Final answer
    x = 90,136.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.