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Finding the Fourth Proportional to 305,388.85, 458,261.88 and 127,881.01

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Solution

The fourth proportional to 305,388.85, 458,261.88 and 127,881.01 is: 191,896.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,388.85 : 458,261.88 = 127,881.01 : x
  2. Step 2: Convert to fraction form
    305,388.85/458,261.88 = 127,881.01/x
  3. Step 3: Cross multiply
    305,388.85x = 458,261.88 × 127,881.01
  4. Step 4: Simplify right side
    305,388.85x = 58,602,992,058.90
  5. Step 5: Solve for x
    x = 58,602,992,058.90/305,388.85
  6. Step 6: Final answer
    x = 191,896.31

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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.