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Finding the Fourth Proportional to 190,379.58, 262,720.67 and 104,337.90

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Solution

The fourth proportional to 190,379.58, 262,720.67 and 104,337.90 is: 143,984.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,379.58 : 262,720.67 = 104,337.90 : x
  2. Step 2: Convert to fraction form
    190,379.58/262,720.67 = 104,337.90/x
  3. Step 3: Cross multiply
    190,379.58x = 262,720.67 × 104,337.90
  4. Step 4: Simplify right side
    190,379.58x = 27,411,722,994.39
  5. Step 5: Solve for x
    x = 27,411,722,994.39/190,379.58
  6. Step 6: Final answer
    x = 143,984.58

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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.