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Finding the Fourth Proportional to 104,606.49, 156,821.54 and 45,397.55

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Solution

The fourth proportional to 104,606.49, 156,821.54 and 45,397.55 is: 68,058.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,606.49 : 156,821.54 = 45,397.55 : x
  2. Step 2: Convert to fraction form
    104,606.49/156,821.54 = 45,397.55/x
  3. Step 3: Cross multiply
    104,606.49x = 156,821.54 × 45,397.55
  4. Step 4: Simplify right side
    104,606.49x = 7,119,312,692.13
  5. Step 5: Solve for x
    x = 7,119,312,692.13/104,606.49
  6. Step 6: Final answer
    x = 68,058.04

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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.