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Finding the Fourth Proportional to 251,762.70, 347,462.19 and 141,399.51

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Solution

The fourth proportional to 251,762.70, 347,462.19 and 141,399.51 is: 195,147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,762.70 : 347,462.19 = 141,399.51 : x
  2. Step 2: Convert to fraction form
    251,762.70/347,462.19 = 141,399.51/x
  3. Step 3: Cross multiply
    251,762.70x = 347,462.19 × 141,399.51
  4. Step 4: Simplify right side
    251,762.70x = 49,130,983,409.53
  5. Step 5: Solve for x
    x = 49,130,983,409.53/251,762.70
  6. Step 6: Final answer
    x = 195,147.98

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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.