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Finding the Fourth Proportional to 204,526.30, 306,929.52 and 71,406.52

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Solution

The fourth proportional to 204,526.30, 306,929.52 and 71,406.52 is: 107,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,526.30 : 306,929.52 = 71,406.52 : x
  2. Step 2: Convert to fraction form
    204,526.30/306,929.52 = 71,406.52/x
  3. Step 3: Cross multiply
    204,526.30x = 306,929.52 × 71,406.52
  4. Step 4: Simplify right side
    204,526.30x = 21,916,768,908.47
  5. Step 5: Solve for x
    x = 21,916,768,908.47/204,526.30
  6. Step 6: Final answer
    x = 107,158.68

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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.