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Finding the Fourth Proportional to 224,259.51, 336,454.26 and 66,491.76

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Solution

The fourth proportional to 224,259.51, 336,454.26 and 66,491.76 is: 99,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,259.51 : 336,454.26 = 66,491.76 : x
  2. Step 2: Convert to fraction form
    224,259.51/336,454.26 = 66,491.76/x
  3. Step 3: Cross multiply
    224,259.51x = 336,454.26 × 66,491.76
  4. Step 4: Simplify right side
    224,259.51x = 22,371,435,906.90
  5. Step 5: Solve for x
    x = 22,371,435,906.90/224,259.51
  6. Step 6: Final answer
    x = 99,756.91

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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.