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Finding the Fourth Proportional to 230,485, 318,069.30 and 124,501

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Solution

The fourth proportional to 230,485, 318,069.30 and 124,501 is: 171,811.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,485 : 318,069.30 = 124,501 : x
  2. Step 2: Convert to fraction form
    230,485/318,069.30 = 124,501/x
  3. Step 3: Cross multiply
    230,485x = 318,069.30 × 124,501
  4. Step 4: Simplify right side
    230,485x = 39,599,945,919.30
  5. Step 5: Solve for x
    x = 39,599,945,919.30/230,485
  6. Step 6: Final answer
    x = 171,811.38

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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.