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Finding the Fourth Proportional to 113,051.66, 169,573.31 and 45,612.86

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Solution

The fourth proportional to 113,051.66, 169,573.31 and 45,612.86 is: 68,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,051.66 : 169,573.31 = 45,612.86 : x
  2. Step 2: Convert to fraction form
    113,051.66/169,573.31 = 45,612.86/x
  3. Step 3: Cross multiply
    113,051.66x = 169,573.31 × 45,612.86
  4. Step 4: Simplify right side
    113,051.66x = 7,734,723,420.70
  5. Step 5: Solve for x
    x = 7,734,723,420.70/113,051.66
  6. Step 6: Final answer
    x = 68,417.60

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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.