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Finding the Fourth Proportional to 159,967.50, 220,755.16 and 92,903.82

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Solution

The fourth proportional to 159,967.50, 220,755.16 and 92,903.82 is: 128,207.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,967.50 : 220,755.16 = 92,903.82 : x
  2. Step 2: Convert to fraction form
    159,967.50/220,755.16 = 92,903.82/x
  3. Step 3: Cross multiply
    159,967.50x = 220,755.16 × 92,903.82
  4. Step 4: Simplify right side
    159,967.50x = 20,508,997,648.71
  5. Step 5: Solve for x
    x = 20,508,997,648.71/159,967.50
  6. Step 6: Final answer
    x = 128,207.28

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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.