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Finding the Fourth Proportional to 370,638.24, 555,958.16 and 133,980.52

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Solution

The fourth proportional to 370,638.24, 555,958.16 and 133,980.52 is: 200,971.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,638.24 : 555,958.16 = 133,980.52 : x
  2. Step 2: Convert to fraction form
    370,638.24/555,958.16 = 133,980.52/x
  3. Step 3: Cross multiply
    370,638.24x = 555,958.16 × 133,980.52
  4. Step 4: Simplify right side
    370,638.24x = 74,487,563,375.04
  5. Step 5: Solve for x
    x = 74,487,563,375.04/370,638.24
  6. Step 6: Final answer
    x = 200,971.07

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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.