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Finding the Fourth Proportional to 169,734.96, 254,214.90 and 81,050.94

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Solution

The fourth proportional to 169,734.96, 254,214.90 and 81,050.94 is: 121,391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,734.96 : 254,214.90 = 81,050.94 : x
  2. Step 2: Convert to fraction form
    169,734.96/254,214.90 = 81,050.94/x
  3. Step 3: Cross multiply
    169,734.96x = 254,214.90 × 81,050.94
  4. Step 4: Simplify right side
    169,734.96x = 20,604,356,607.01
  5. Step 5: Solve for x
    x = 20,604,356,607.01/169,734.96
  6. Step 6: Final answer
    x = 121,391.35

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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.