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Finding the Fourth Proportional to 85,957.56, 118,622.52 and 48,231

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Solution

The fourth proportional to 85,957.56, 118,622.52 and 48,231 is: 66,559.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,957.56 : 118,622.52 = 48,231 : x
  2. Step 2: Convert to fraction form
    85,957.56/118,622.52 = 48,231/x
  3. Step 3: Cross multiply
    85,957.56x = 118,622.52 × 48,231
  4. Step 4: Simplify right side
    85,957.56x = 5,721,282,762.12
  5. Step 5: Solve for x
    x = 5,721,282,762.12/85,957.56
  6. Step 6: Final answer
    x = 66,559.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.