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Finding the Fourth Proportional to 289,313.26, 399,187.83 and 174,610.60

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Solution

The fourth proportional to 289,313.26, 399,187.83 and 174,610.60 is: 240,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,313.26 : 399,187.83 = 174,610.60 : x
  2. Step 2: Convert to fraction form
    289,313.26/399,187.83 = 174,610.60/x
  3. Step 3: Cross multiply
    289,313.26x = 399,187.83 × 174,610.60
  4. Step 4: Simplify right side
    289,313.26x = 69,702,426,509.00
  5. Step 5: Solve for x
    x = 69,702,426,509.00/289,313.26
  6. Step 6: Final answer
    x = 240,923.72

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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.