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Finding the Fourth Proportional to 373,140.78, 514,934.47 and 211,996.11

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Solution

The fourth proportional to 373,140.78, 514,934.47 and 211,996.11 is: 292,554.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,140.78 : 514,934.47 = 211,996.11 : x
  2. Step 2: Convert to fraction form
    373,140.78/514,934.47 = 211,996.11/x
  3. Step 3: Cross multiply
    373,140.78x = 514,934.47 × 211,996.11
  4. Step 4: Simplify right side
    373,140.78x = 109,164,104,544.91
  5. Step 5: Solve for x
    x = 109,164,104,544.91/373,140.78
  6. Step 6: Final answer
    x = 292,554.74

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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.