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Finding the Fourth Proportional to 101,619.72, 152,235.36 and 61,650.90

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Solution

The fourth proportional to 101,619.72, 152,235.36 and 61,650.90 is: 92,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,619.72 : 152,235.36 = 61,650.90 : x
  2. Step 2: Convert to fraction form
    101,619.72/152,235.36 = 61,650.90/x
  3. Step 3: Cross multiply
    101,619.72x = 152,235.36 × 61,650.90
  4. Step 4: Simplify right side
    101,619.72x = 9,385,446,955.82
  5. Step 5: Solve for x
    x = 9,385,446,955.82/101,619.72
  6. Step 6: Final answer
    x = 92,358.52

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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.