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Finding the Fourth Proportional to 105,102.77, 157,709.51 and 60,760.67

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Solution

The fourth proportional to 105,102.77, 157,709.51 and 60,760.67 is: 91,173.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,102.77 : 157,709.51 = 60,760.67 : x
  2. Step 2: Convert to fraction form
    105,102.77/157,709.51 = 60,760.67/x
  3. Step 3: Cross multiply
    105,102.77x = 157,709.51 × 60,760.67
  4. Step 4: Simplify right side
    105,102.77x = 9,582,534,400.62
  5. Step 5: Solve for x
    x = 9,582,534,400.62/105,102.77
  6. Step 6: Final answer
    x = 91,173.00

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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.