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Finding the Fourth Proportional to 416,475.81, 624,708.18 and 100,935.45

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Solution

The fourth proportional to 416,475.81, 624,708.18 and 100,935.45 is: 151,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,475.81 : 624,708.18 = 100,935.45 : x
  2. Step 2: Convert to fraction form
    416,475.81/624,708.18 = 100,935.45/x
  3. Step 3: Cross multiply
    416,475.81x = 624,708.18 × 100,935.45
  4. Step 4: Simplify right side
    416,475.81x = 63,055,201,266.98
  5. Step 5: Solve for x
    x = 63,055,201,266.98/416,475.81
  6. Step 6: Final answer
    x = 151,401.83

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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.