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Finding the Fourth Proportional to 411,052.96, 616,159.02 and 208,273.42

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Solution

The fourth proportional to 411,052.96, 616,159.02 and 208,273.42 is: 312,197.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,052.96 : 616,159.02 = 208,273.42 : x
  2. Step 2: Convert to fraction form
    411,052.96/616,159.02 = 208,273.42/x
  3. Step 3: Cross multiply
    411,052.96x = 616,159.02 × 208,273.42
  4. Step 4: Simplify right side
    411,052.96x = 128,329,546,359.25
  5. Step 5: Solve for x
    x = 128,329,546,359.25/411,052.96
  6. Step 6: Final answer
    x = 312,197.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.