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Finding the Fourth Proportional to 325,303.43, 487,974.28 and 125,624.86

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Solution

The fourth proportional to 325,303.43, 487,974.28 and 125,624.86 is: 188,444.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,303.43 : 487,974.28 = 125,624.86 : x
  2. Step 2: Convert to fraction form
    325,303.43/487,974.28 = 125,624.86/x
  3. Step 3: Cross multiply
    325,303.43x = 487,974.28 × 125,624.86
  4. Step 4: Simplify right side
    325,303.43x = 61,301,700,668.96
  5. Step 5: Solve for x
    x = 61,301,700,668.96/325,303.43
  6. Step 6: Final answer
    x = 188,444.68

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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.