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Finding the Fourth Proportional to 104,555.56, 156,726.46 and 45,341.32

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Solution

The fourth proportional to 104,555.56, 156,726.46 and 45,341.32 is: 67,965.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,555.56 : 156,726.46 = 45,341.32 : x
  2. Step 2: Convert to fraction form
    104,555.56/156,726.46 = 45,341.32/x
  3. Step 3: Cross multiply
    104,555.56x = 156,726.46 × 45,341.32
  4. Step 4: Simplify right side
    104,555.56x = 7,106,184,575.33
  5. Step 5: Solve for x
    x = 7,106,184,575.33/104,555.56
  6. Step 6: Final answer
    x = 67,965.63

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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.