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Finding the Fourth Proportional to 103,539.56, 142,883.88 and 58,827.56

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Solution

The fourth proportional to 103,539.56, 142,883.88 and 58,827.56 is: 81,181.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,539.56 : 142,883.88 = 58,827.56 : x
  2. Step 2: Convert to fraction form
    103,539.56/142,883.88 = 58,827.56/x
  3. Step 3: Cross multiply
    103,539.56x = 142,883.88 × 58,827.56
  4. Step 4: Simplify right side
    103,539.56x = 8,405,510,023.73
  5. Step 5: Solve for x
    x = 8,405,510,023.73/103,539.56
  6. Step 6: Final answer
    x = 81,181.63

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1.5x scale

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.