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Finding the Fourth Proportional to 373,134.85, 514,926.26 and 211,990.16

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Solution

The fourth proportional to 373,134.85, 514,926.26 and 211,990.16 is: 292,546.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,134.85 : 514,926.26 = 211,990.16 : x
  2. Step 2: Convert to fraction form
    373,134.85/514,926.26 = 211,990.16/x
  3. Step 3: Cross multiply
    373,134.85x = 514,926.26 × 211,990.16
  4. Step 4: Simplify right side
    373,134.85x = 109,159,302,460.37
  5. Step 5: Solve for x
    x = 109,159,302,460.37/373,134.85
  6. Step 6: Final answer
    x = 292,546.52

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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.