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Finding the Fourth Proportional to 235,901.60, 325,571.10 and 140,408.60

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Solution

The fourth proportional to 235,901.60, 325,571.10 and 140,408.60 is: 193,779.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,901.60 : 325,571.10 = 140,408.60 : x
  2. Step 2: Convert to fraction form
    235,901.60/325,571.10 = 140,408.60/x
  3. Step 3: Cross multiply
    235,901.60x = 325,571.10 × 140,408.60
  4. Step 4: Simplify right side
    235,901.60x = 45,712,982,351.46
  5. Step 5: Solve for x
    x = 45,712,982,351.46/235,901.60
  6. Step 6: Final answer
    x = 193,779.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.