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Finding the Fourth Proportional to 106,434, 146,879.93 and 58,688.96

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Solution

The fourth proportional to 106,434, 146,879.93 and 58,688.96 is: 80,991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,434 : 146,879.93 = 58,688.96 : x
  2. Step 2: Convert to fraction form
    106,434/146,879.93 = 58,688.96/x
  3. Step 3: Cross multiply
    106,434x = 146,879.93 × 58,688.96
  4. Step 4: Simplify right side
    106,434x = 8,620,229,748.90
  5. Step 5: Solve for x
    x = 8,620,229,748.90/106,434
  6. Step 6: Final answer
    x = 80,991.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.