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Finding the Fourth Proportional to 445,692.06, 668,472.45 and 146,204.28

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Solution

The fourth proportional to 445,692.06, 668,472.45 and 146,204.28 is: 219,284.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,692.06 : 668,472.45 = 146,204.28 : x
  2. Step 2: Convert to fraction form
    445,692.06/668,472.45 = 146,204.28/x
  3. Step 3: Cross multiply
    445,692.06x = 668,472.45 × 146,204.28
  4. Step 4: Simplify right side
    445,692.06x = 97,733,533,252.09
  5. Step 5: Solve for x
    x = 97,733,533,252.09/445,692.06
  6. Step 6: Final answer
    x = 219,284.89

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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.