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Finding the Fourth Proportional to 305,399.08, 458,127.78 and 94,980.52

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Solution

The fourth proportional to 305,399.08, 458,127.78 and 94,980.52 is: 142,479.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,399.08 : 458,127.78 = 94,980.52 : x
  2. Step 2: Convert to fraction form
    305,399.08/458,127.78 = 94,980.52/x
  3. Step 3: Cross multiply
    305,399.08x = 458,127.78 × 94,980.52
  4. Step 4: Simplify right side
    305,399.08x = 43,513,214,770.85
  5. Step 5: Solve for x
    x = 43,513,214,770.85/305,399.08
  6. Step 6: Final answer
    x = 142,479.85

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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.