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Finding the Fourth Proportional to 119,940.87, 179,879.90 and 35,678.35

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Solution

The fourth proportional to 119,940.87, 179,879.90 and 35,678.35 is: 53,508.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,940.87 : 179,879.90 = 35,678.35 : x
  2. Step 2: Convert to fraction form
    119,940.87/179,879.90 = 35,678.35/x
  3. Step 3: Cross multiply
    119,940.87x = 179,879.90 × 35,678.35
  4. Step 4: Simplify right side
    119,940.87x = 6,417,817,130.77
  5. Step 5: Solve for x
    x = 6,417,817,130.77/119,940.87
  6. Step 6: Final answer
    x = 53,508.18

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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.