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Finding the Fourth Proportional to 127,796.98, 191,729.98 and 39,048.06

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Solution

The fourth proportional to 127,796.98, 191,729.98 and 39,048.06 is: 58,582.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,796.98 : 191,729.98 = 39,048.06 : x
  2. Step 2: Convert to fraction form
    127,796.98/191,729.98 = 39,048.06/x
  3. Step 3: Cross multiply
    127,796.98x = 191,729.98 × 39,048.06
  4. Step 4: Simplify right side
    127,796.98x = 7,486,683,762.84
  5. Step 5: Solve for x
    x = 7,486,683,762.84/127,796.98
  6. Step 6: Final answer
    x = 58,582.63

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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.