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Finding the Fourth Proportional to 498,690.99, 748,141.58 and 161,705.39

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Solution

The fourth proportional to 498,690.99, 748,141.58 and 161,705.39 is: 242,592.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,690.99 : 748,141.58 = 161,705.39 : x
  2. Step 2: Convert to fraction form
    498,690.99/748,141.58 = 161,705.39/x
  3. Step 3: Cross multiply
    498,690.99x = 748,141.58 × 161,705.39
  4. Step 4: Simplify right side
    498,690.99x = 120,978,522,632.67
  5. Step 5: Solve for x
    x = 120,978,522,632.67/498,690.99
  6. Step 6: Final answer
    x = 242,592.16

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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.