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Finding the Fourth Proportional to 372,902.19, 558,978.75 and 119,996.81

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Solution

The fourth proportional to 372,902.19, 558,978.75 and 119,996.81 is: 179,874.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,902.19 : 558,978.75 = 119,996.81 : x
  2. Step 2: Convert to fraction form
    372,902.19/558,978.75 = 119,996.81/x
  3. Step 3: Cross multiply
    372,902.19x = 558,978.75 × 119,996.81
  4. Step 4: Simplify right side
    372,902.19x = 67,075,666,857.79
  5. Step 5: Solve for x
    x = 67,075,666,857.79/372,902.19
  6. Step 6: Final answer
    x = 179,874.69

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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.