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Finding the Fourth Proportional to 307,638.41, 461,471.28 and 94,390.72

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Solution

The fourth proportional to 307,638.41, 461,471.28 and 94,390.72 is: 141,590.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,638.41 : 461,471.28 = 94,390.72 : x
  2. Step 2: Convert to fraction form
    307,638.41/461,471.28 = 94,390.72/x
  3. Step 3: Cross multiply
    307,638.41x = 461,471.28 × 94,390.72
  4. Step 4: Simplify right side
    307,638.41x = 43,558,604,870.88
  5. Step 5: Solve for x
    x = 43,558,604,870.88/307,638.41
  6. Step 6: Final answer
    x = 141,590.27

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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.