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Finding the Fourth Proportional to 483,607.80, 725,411.70 and 188,119.80

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Solution

The fourth proportional to 483,607.80, 725,411.70 and 188,119.80 is: 282,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,607.80 : 725,411.70 = 188,119.80 : x
  2. Step 2: Convert to fraction form
    483,607.80/725,411.70 = 188,119.80/x
  3. Step 3: Cross multiply
    483,607.80x = 725,411.70 × 188,119.80
  4. Step 4: Simplify right side
    483,607.80x = 136,464,303,921.66
  5. Step 5: Solve for x
    x = 136,464,303,921.66/483,607.80
  6. Step 6: Final answer
    x = 282,179.70

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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.