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Finding the Fourth Proportional to 67,677.75, 101,459.53 and 42,662.66

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Solution

The fourth proportional to 67,677.75, 101,459.53 and 42,662.66 is: 63,958.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,677.75 : 101,459.53 = 42,662.66 : x
  2. Step 2: Convert to fraction form
    67,677.75/101,459.53 = 42,662.66/x
  3. Step 3: Cross multiply
    67,677.75x = 101,459.53 × 42,662.66
  4. Step 4: Simplify right side
    67,677.75x = 4,328,533,218.84
  5. Step 5: Solve for x
    x = 4,328,533,218.84/67,677.75
  6. Step 6: Final answer
    x = 63,958.00

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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.