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Finding the Fourth Proportional to 371,044.01, 512,052.17 and 209,895.82

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Solution

The fourth proportional to 371,044.01, 512,052.17 and 209,895.82 is: 289,662.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,044.01 : 512,052.17 = 209,895.82 : x
  2. Step 2: Convert to fraction form
    371,044.01/512,052.17 = 209,895.82/x
  3. Step 3: Cross multiply
    371,044.01x = 512,052.17 × 209,895.82
  4. Step 4: Simplify right side
    371,044.01x = 107,477,610,655.61
  5. Step 5: Solve for x
    x = 107,477,610,655.61/371,044.01
  6. Step 6: Final answer
    x = 289,662.70

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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.