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Finding the Fourth Proportional to 445,681.44, 668,533.10 and 146,149.92

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Solution

The fourth proportional to 445,681.44, 668,533.10 and 146,149.92 is: 219,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,681.44 : 668,533.10 = 146,149.92 : x
  2. Step 2: Convert to fraction form
    445,681.44/668,533.10 = 146,149.92/x
  3. Step 3: Cross multiply
    445,681.44x = 668,533.10 × 146,149.92
  4. Step 4: Simplify right side
    445,681.44x = 97,706,058,351.60
  5. Step 5: Solve for x
    x = 97,706,058,351.60/445,681.44
  6. Step 6: Final answer
    x = 219,228.47

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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.