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Finding the Fourth Proportional to 170,028, 254,691.96 and 99,737.82

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Solution

The fourth proportional to 170,028, 254,691.96 and 99,737.82 is: 149,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,028 : 254,691.96 = 99,737.82 : x
  2. Step 2: Convert to fraction form
    170,028/254,691.96 = 99,737.82/x
  3. Step 3: Cross multiply
    170,028x = 254,691.96 × 99,737.82
  4. Step 4: Simplify right side
    170,028x = 25,402,420,861.93
  5. Step 5: Solve for x
    x = 25,402,420,861.93/170,028
  6. Step 6: Final answer
    x = 149,401.40

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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.