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Finding the Fourth Proportional to 126,586.87, 189,973.76 and 60,027.22

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Solution

The fourth proportional to 126,586.87, 189,973.76 and 60,027.22 is: 90,085.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,586.87 : 189,973.76 = 60,027.22 : x
  2. Step 2: Convert to fraction form
    126,586.87/189,973.76 = 60,027.22/x
  3. Step 3: Cross multiply
    126,586.87x = 189,973.76 × 60,027.22
  4. Step 4: Simplify right side
    126,586.87x = 11,403,596,385.61
  5. Step 5: Solve for x
    x = 11,403,596,385.61/126,586.87
  6. Step 6: Final answer
    x = 90,085.14

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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.