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Finding the Fourth Proportional to 245,201.13, 367,723.94 and 78,950.25

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Solution

The fourth proportional to 245,201.13, 367,723.94 and 78,950.25 is: 118,400.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,201.13 : 367,723.94 = 78,950.25 : x
  2. Step 2: Convert to fraction form
    245,201.13/367,723.94 = 78,950.25/x
  3. Step 3: Cross multiply
    245,201.13x = 367,723.94 × 78,950.25
  4. Step 4: Simplify right side
    245,201.13x = 29,031,896,599.23
  5. Step 5: Solve for x
    x = 29,031,896,599.23/245,201.13
  6. Step 6: Final answer
    x = 118,400.34

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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.