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Finding the Fourth Proportional to 210,325.55, 290,255.60 and 119,694.51

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Solution

The fourth proportional to 210,325.55, 290,255.60 and 119,694.51 is: 165,182.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,325.55 : 290,255.60 = 119,694.51 : x
  2. Step 2: Convert to fraction form
    210,325.55/290,255.60 = 119,694.51/x
  3. Step 3: Cross multiply
    210,325.55x = 290,255.60 × 119,694.51
  4. Step 4: Simplify right side
    210,325.55x = 34,742,002,115.99
  5. Step 5: Solve for x
    x = 34,742,002,115.99/210,325.55
  6. Step 6: Final answer
    x = 165,182.04

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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.