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Finding the Fourth Proportional to 493,970.40, 740,949.12 and 119,992.32

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Solution

The fourth proportional to 493,970.40, 740,949.12 and 119,992.32 is: 179,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,970.40 : 740,949.12 = 119,992.32 : x
  2. Step 2: Convert to fraction form
    493,970.40/740,949.12 = 119,992.32/x
  3. Step 3: Cross multiply
    493,970.40x = 740,949.12 × 119,992.32
  4. Step 4: Simplify right side
    493,970.40x = 88,908,203,910.76
  5. Step 5: Solve for x
    x = 88,908,203,910.76/493,970.40
  6. Step 6: Final answer
    x = 179,986.91

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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.