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Finding the Fourth Proportional to 354,291.03, 531,345.83 and 104,914.71

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Solution

The fourth proportional to 354,291.03, 531,345.83 and 104,914.71 is: 157,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,291.03 : 531,345.83 = 104,914.71 : x
  2. Step 2: Convert to fraction form
    354,291.03/531,345.83 = 104,914.71/x
  3. Step 3: Cross multiply
    354,291.03x = 531,345.83 × 104,914.71
  4. Step 4: Simplify right side
    354,291.03x = 55,745,993,139.59
  5. Step 5: Solve for x
    x = 55,745,993,139.59/354,291.03
  6. Step 6: Final answer
    x = 157,345.20

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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.