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Finding the Fourth Proportional to 269,265.40, 403,898.10 and 91,756.60

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Solution

The fourth proportional to 269,265.40, 403,898.10 and 91,756.60 is: 137,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,265.40 : 403,898.10 = 91,756.60 : x
  2. Step 2: Convert to fraction form
    269,265.40/403,898.10 = 91,756.60/x
  3. Step 3: Cross multiply
    269,265.40x = 403,898.10 × 91,756.60
  4. Step 4: Simplify right side
    269,265.40x = 37,060,316,402.46
  5. Step 5: Solve for x
    x = 37,060,316,402.46/269,265.40
  6. Step 6: Final answer
    x = 137,634.90

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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.