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Finding the Fourth Proportional to 493,187.76, 739,781.76 and 119,210.72

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Solution

The fourth proportional to 493,187.76, 739,781.76 and 119,210.72 is: 178,816.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,187.76 : 739,781.76 = 119,210.72 : x
  2. Step 2: Convert to fraction form
    493,187.76/739,781.76 = 119,210.72/x
  3. Step 3: Cross multiply
    493,187.76x = 739,781.76 × 119,210.72
  4. Step 4: Simplify right side
    493,187.76x = 88,189,916,252.47
  5. Step 5: Solve for x
    x = 88,189,916,252.47/493,187.76
  6. Step 6: Final answer
    x = 178,816.11

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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.