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Finding the Fourth Proportional to 101,207.75, 151,618.43 and 56,699.87

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Solution

The fourth proportional to 101,207.75, 151,618.43 and 56,699.87 is: 84,941.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,207.75 : 151,618.43 = 56,699.87 : x
  2. Step 2: Convert to fraction form
    101,207.75/151,618.43 = 56,699.87/x
  3. Step 3: Cross multiply
    101,207.75x = 151,618.43 × 56,699.87
  4. Step 4: Simplify right side
    101,207.75x = 8,596,744,654.26
  5. Step 5: Solve for x
    x = 8,596,744,654.26/101,207.75
  6. Step 6: Final answer
    x = 84,941.57

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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.