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Finding the Fourth Proportional to 484,528.61, 726,787.97 and 124,698.06

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Solution

The fourth proportional to 484,528.61, 726,787.97 and 124,698.06 is: 187,045.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,528.61 : 726,787.97 = 124,698.06 : x
  2. Step 2: Convert to fraction form
    484,528.61/726,787.97 = 124,698.06/x
  3. Step 3: Cross multiply
    484,528.61x = 726,787.97 × 124,698.06
  4. Step 4: Simplify right side
    484,528.61x = 90,629,048,727.60
  5. Step 5: Solve for x
    x = 90,629,048,727.60/484,528.61
  6. Step 6: Final answer
    x = 187,045.81

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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.