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Finding the Fourth Proportional to 416,486.99, 624,730.48 and 100,943.89

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Solution

The fourth proportional to 416,486.99, 624,730.48 and 100,943.89 is: 151,415.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,486.99 : 624,730.48 = 100,943.89 : x
  2. Step 2: Convert to fraction form
    416,486.99/624,730.48 = 100,943.89/x
  3. Step 3: Cross multiply
    416,486.99x = 624,730.48 × 100,943.89
  4. Step 4: Simplify right side
    416,486.99x = 63,062,724,852.77
  5. Step 5: Solve for x
    x = 63,062,724,852.77/416,486.99
  6. Step 6: Final answer
    x = 151,415.83

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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.