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Finding the Fourth Proportional to 376,903.80, 565,355.70 and 124,183.80

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Solution

The fourth proportional to 376,903.80, 565,355.70 and 124,183.80 is: 186,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,903.80 : 565,355.70 = 124,183.80 : x
  2. Step 2: Convert to fraction form
    376,903.80/565,355.70 = 124,183.80/x
  3. Step 3: Cross multiply
    376,903.80x = 565,355.70 × 124,183.80
  4. Step 4: Simplify right side
    376,903.80x = 70,208,019,177.66
  5. Step 5: Solve for x
    x = 70,208,019,177.66/376,903.80
  6. Step 6: Final answer
    x = 186,275.70

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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.