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Finding the Fourth Proportional to 104,637.30, 156,955.95 and 55,485.30

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Solution

The fourth proportional to 104,637.30, 156,955.95 and 55,485.30 is: 83,227.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,637.30 : 156,955.95 = 55,485.30 : x
  2. Step 2: Convert to fraction form
    104,637.30/156,955.95 = 55,485.30/x
  3. Step 3: Cross multiply
    104,637.30x = 156,955.95 × 55,485.30
  4. Step 4: Simplify right side
    104,637.30x = 8,708,747,972.54
  5. Step 5: Solve for x
    x = 8,708,747,972.54/104,637.30
  6. Step 6: Final answer
    x = 83,227.95

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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.