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Finding the Fourth Proportional to 67,503.64, 101,292.02 and 28,087.96

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Solution

The fourth proportional to 67,503.64, 101,292.02 and 28,087.96 is: 42,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,503.64 : 101,292.02 = 28,087.96 : x
  2. Step 2: Convert to fraction form
    67,503.64/101,292.02 = 28,087.96/x
  3. Step 3: Cross multiply
    67,503.64x = 101,292.02 × 28,087.96
  4. Step 4: Simplify right side
    67,503.64x = 2,845,086,206.08
  5. Step 5: Solve for x
    x = 2,845,086,206.08/67,503.64
  6. Step 6: Final answer
    x = 42,147.15

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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.