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Finding the Fourth Proportional to 361,849.01, 499,374.28 and 208,915.23

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Solution

The fourth proportional to 361,849.01, 499,374.28 and 208,915.23 is: 288,316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,849.01 : 499,374.28 = 208,915.23 : x
  2. Step 2: Convert to fraction form
    361,849.01/499,374.28 = 208,915.23/x
  3. Step 3: Cross multiply
    361,849.01x = 499,374.28 × 208,915.23
  4. Step 4: Simplify right side
    361,849.01x = 104,326,894,696.08
  5. Step 5: Solve for x
    x = 104,326,894,696.08/361,849.01
  6. Step 6: Final answer
    x = 288,316.10

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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.