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Finding the Fourth Proportional to 67,264.51, 100,647.63 and 42,104.08

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Solution

The fourth proportional to 67,264.51, 100,647.63 and 42,104.08 is: 63,000.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,264.51 : 100,647.63 = 42,104.08 : x
  2. Step 2: Convert to fraction form
    67,264.51/100,647.63 = 42,104.08/x
  3. Step 3: Cross multiply
    67,264.51x = 100,647.63 × 42,104.08
  4. Step 4: Simplify right side
    67,264.51x = 4,237,675,865.33
  5. Step 5: Solve for x
    x = 4,237,675,865.33/67,264.51
  6. Step 6: Final answer
    x = 63,000.17

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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.