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Finding the Fourth Proportional to 104,595.88, 156,920.22 and 45,417.16

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Solution

The fourth proportional to 104,595.88, 156,920.22 and 45,417.16 is: 68,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,595.88 : 156,920.22 = 45,417.16 : x
  2. Step 2: Convert to fraction form
    104,595.88/156,920.22 = 45,417.16/x
  3. Step 3: Cross multiply
    104,595.88x = 156,920.22 × 45,417.16
  4. Step 4: Simplify right side
    104,595.88x = 7,126,870,738.98
  5. Step 5: Solve for x
    x = 7,126,870,738.98/104,595.88
  6. Step 6: Final answer
    x = 68,137.20

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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.