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Finding the Fourth Proportional to 416,490.72, 624,730.56 and 100,950.48

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Solution

The fourth proportional to 416,490.72, 624,730.56 and 100,950.48 is: 151,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,490.72 : 624,730.56 = 100,950.48 : x
  2. Step 2: Convert to fraction form
    416,490.72/624,730.56 = 100,950.48/x
  3. Step 3: Cross multiply
    416,490.72x = 624,730.56 × 100,950.48
  4. Step 4: Simplify right side
    416,490.72x = 63,066,849,902.67
  5. Step 5: Solve for x
    x = 63,066,849,902.67/416,490.72
  6. Step 6: Final answer
    x = 151,424.38

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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.