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Finding the Fourth Proportional to 105,163.40, 157,437.90 and 94,104.20

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Solution

The fourth proportional to 105,163.40, 157,437.90 and 94,104.20 is: 140,881.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,163.40 : 157,437.90 = 94,104.20 : x
  2. Step 2: Convert to fraction form
    105,163.40/157,437.90 = 94,104.20/x
  3. Step 3: Cross multiply
    105,163.40x = 157,437.90 × 94,104.20
  4. Step 4: Simplify right side
    105,163.40x = 14,815,567,629.18
  5. Step 5: Solve for x
    x = 14,815,567,629.18/105,163.40
  6. Step 6: Final answer
    x = 140,881.41

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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.