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Finding the Fourth Proportional to 262,499.70, 394,041.15 and 144,401.70

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Solution

The fourth proportional to 262,499.70, 394,041.15 and 144,401.70 is: 216,762.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,499.70 : 394,041.15 = 144,401.70 : x
  2. Step 2: Convert to fraction form
    262,499.70/394,041.15 = 144,401.70/x
  3. Step 3: Cross multiply
    262,499.70x = 394,041.15 × 144,401.70
  4. Step 4: Simplify right side
    262,499.70x = 56,900,211,929.96
  5. Step 5: Solve for x
    x = 56,900,211,929.96/262,499.70
  6. Step 6: Final answer
    x = 216,762.96

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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.