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Finding the Fourth Proportional to 544,442.28, 816,660.60 and 139,632.60

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Solution

The fourth proportional to 544,442.28, 816,660.60 and 139,632.60 is: 209,448.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,442.28 : 816,660.60 = 139,632.60 : x
  2. Step 2: Convert to fraction form
    544,442.28/816,660.60 = 139,632.60/x
  3. Step 3: Cross multiply
    544,442.28x = 816,660.60 × 139,632.60
  4. Step 4: Simplify right side
    544,442.28x = 114,032,442,895.56
  5. Step 5: Solve for x
    x = 114,032,442,895.56/544,442.28
  6. Step 6: Final answer
    x = 209,448.18

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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.