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Finding the Fourth Proportional to 189,650.50, 261,695.38 and 104,762.50

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Solution

The fourth proportional to 189,650.50, 261,695.38 and 104,762.50 is: 144,559.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,650.50 : 261,695.38 = 104,762.50 : x
  2. Step 2: Convert to fraction form
    189,650.50/261,695.38 = 104,762.50/x
  3. Step 3: Cross multiply
    189,650.50x = 261,695.38 × 104,762.50
  4. Step 4: Simplify right side
    189,650.50x = 27,415,862,247.25
  5. Step 5: Solve for x
    x = 27,415,862,247.25/189,650.50
  6. Step 6: Final answer
    x = 144,559.93

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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.