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Finding the Fourth Proportional to 262,798.15, 394,223.03 and 70,670.20

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Solution

The fourth proportional to 262,798.15, 394,223.03 and 70,670.20 is: 106,012.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,798.15 : 394,223.03 = 70,670.20 : x
  2. Step 2: Convert to fraction form
    262,798.15/394,223.03 = 70,670.20/x
  3. Step 3: Cross multiply
    262,798.15x = 394,223.03 × 70,670.20
  4. Step 4: Simplify right side
    262,798.15x = 27,859,820,374.71
  5. Step 5: Solve for x
    x = 27,859,820,374.71/262,798.15
  6. Step 6: Final answer
    x = 106,012.24

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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.