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Finding the Fourth Proportional to 445,773.36, 668,636.54 and 146,214.50

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Solution

The fourth proportional to 445,773.36, 668,636.54 and 146,214.50 is: 219,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,773.36 : 668,636.54 = 146,214.50 : x
  2. Step 2: Convert to fraction form
    445,773.36/668,636.54 = 146,214.50/x
  3. Step 3: Cross multiply
    445,773.36x = 668,636.54 × 146,214.50
  4. Step 4: Simplify right side
    445,773.36x = 97,764,357,377.83
  5. Step 5: Solve for x
    x = 97,764,357,377.83/445,773.36
  6. Step 6: Final answer
    x = 219,314.04

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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.