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Finding the Fourth Proportional to 101,109.68, 151,353.48 and 65,973.68

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Solution

The fourth proportional to 101,109.68, 151,353.48 and 65,973.68 is: 98,757.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,109.68 : 151,353.48 = 65,973.68 : x
  2. Step 2: Convert to fraction form
    101,109.68/151,353.48 = 65,973.68/x
  3. Step 3: Cross multiply
    101,109.68x = 151,353.48 × 65,973.68
  4. Step 4: Simplify right side
    101,109.68x = 9,985,346,056.41
  5. Step 5: Solve for x
    x = 9,985,346,056.41/101,109.68
  6. Step 6: Final answer
    x = 98,757.57

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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.