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Finding the Fourth Proportional to 103,473.48, 155,235.06 and 61,385.88

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Solution

The fourth proportional to 103,473.48, 155,235.06 and 61,385.88 is: 92,093.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,473.48 : 155,235.06 = 61,385.88 : x
  2. Step 2: Convert to fraction form
    103,473.48/155,235.06 = 61,385.88/x
  3. Step 3: Cross multiply
    103,473.48x = 155,235.06 × 61,385.88
  4. Step 4: Simplify right side
    103,473.48x = 9,529,240,764.95
  5. Step 5: Solve for x
    x = 9,529,240,764.95/103,473.48
  6. Step 6: Final answer
    x = 92,093.56

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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.