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Finding the Fourth Proportional to 201,628.60, 302,442.90 and 61,387.23

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Solution

The fourth proportional to 201,628.60, 302,442.90 and 61,387.23 is: 92,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,628.60 : 302,442.90 = 61,387.23 : x
  2. Step 2: Convert to fraction form
    201,628.60/302,442.90 = 61,387.23/x
  3. Step 3: Cross multiply
    201,628.60x = 302,442.90 × 61,387.23
  4. Step 4: Simplify right side
    201,628.60x = 18,566,131,864.17
  5. Step 5: Solve for x
    x = 18,566,131,864.17/201,628.60
  6. Step 6: Final answer
    x = 92,080.85

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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.