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Finding the Fourth Proportional to 305,655.93, 458,548.56 and 92,439.77

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Solution

The fourth proportional to 305,655.93, 458,548.56 and 92,439.77 is: 138,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,655.93 : 458,548.56 = 92,439.77 : x
  2. Step 2: Convert to fraction form
    305,655.93/458,548.56 = 92,439.77/x
  3. Step 3: Cross multiply
    305,655.93x = 458,548.56 × 92,439.77
  4. Step 4: Simplify right side
    305,655.93x = 42,388,121,127.49
  5. Step 5: Solve for x
    x = 42,388,121,127.49/305,655.93
  6. Step 6: Final answer
    x = 138,679.20

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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.