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Finding the Fourth Proportional to 178,574.13, 246,443.22 and 118,039.77

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Solution

The fourth proportional to 178,574.13, 246,443.22 and 118,039.77 is: 162,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,574.13 : 246,443.22 = 118,039.77 : x
  2. Step 2: Convert to fraction form
    178,574.13/246,443.22 = 118,039.77/x
  3. Step 3: Cross multiply
    178,574.13x = 246,443.22 × 118,039.77
  4. Step 4: Simplify right side
    178,574.13x = 29,090,101,006.86
  5. Step 5: Solve for x
    x = 29,090,101,006.86/178,574.13
  6. Step 6: Final answer
    x = 162,902.10

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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.