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Finding the Fourth Proportional to 224,658.21, 336,696.44 and 91,382.61

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Solution

The fourth proportional to 224,658.21, 336,696.44 and 91,382.61 is: 136,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,658.21 : 336,696.44 = 91,382.61 : x
  2. Step 2: Convert to fraction form
    224,658.21/336,696.44 = 91,382.61/x
  3. Step 3: Cross multiply
    224,658.21x = 336,696.44 × 91,382.61
  4. Step 4: Simplify right side
    224,658.21x = 30,768,199,008.00
  5. Step 5: Solve for x
    x = 30,768,199,008.00/224,658.21
  6. Step 6: Final answer
    x = 136,955.60

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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.