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Finding the Fourth Proportional to 354,401.52, 531,602.26 and 91,745.52

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Solution

The fourth proportional to 354,401.52, 531,602.26 and 91,745.52 is: 137,618.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,401.52 : 531,602.26 = 91,745.52 : x
  2. Step 2: Convert to fraction form
    354,401.52/531,602.26 = 91,745.52/x
  3. Step 3: Cross multiply
    354,401.52x = 531,602.26 × 91,745.52
  4. Step 4: Simplify right side
    354,401.52x = 48,772,125,776.88
  5. Step 5: Solve for x
    x = 48,772,125,776.88/354,401.52
  6. Step 6: Final answer
    x = 137,618.27

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1.5x scale

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.