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Finding the Fourth Proportional to 224,320, 336,543.56 and 91,295.73

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Solution

The fourth proportional to 224,320, 336,543.56 and 91,295.73 is: 136,969.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,320 : 336,543.56 = 91,295.73 : x
  2. Step 2: Convert to fraction form
    224,320/336,543.56 = 91,295.73/x
  3. Step 3: Cross multiply
    224,320x = 336,543.56 × 91,295.73
  4. Step 4: Simplify right side
    224,320x = 30,724,989,987.00
  5. Step 5: Solve for x
    x = 30,724,989,987.00/224,320
  6. Step 6: Final answer
    x = 136,969.46

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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.