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Finding the Fourth Proportional to 370,879.36, 556,318.53 and 134,166.58

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Solution

The fourth proportional to 370,879.36, 556,318.53 and 134,166.58 is: 201,249.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,879.36 : 556,318.53 = 134,166.58 : x
  2. Step 2: Convert to fraction form
    370,879.36/556,318.53 = 134,166.58/x
  3. Step 3: Cross multiply
    370,879.36x = 556,318.53 × 134,166.58
  4. Step 4: Simplify right side
    370,879.36x = 74,639,353,169.93
  5. Step 5: Solve for x
    x = 74,639,353,169.93/370,879.36
  6. Step 6: Final answer
    x = 201,249.68

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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.