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Finding the Fourth Proportional to 103,635.60, 155,544.53 and 61,462.95

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Solution

The fourth proportional to 103,635.60, 155,544.53 and 61,462.95 is: 92,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,635.60 : 155,544.53 = 61,462.95 : x
  2. Step 2: Convert to fraction form
    103,635.60/155,544.53 = 61,462.95/x
  3. Step 3: Cross multiply
    103,635.60x = 155,544.53 × 61,462.95
  4. Step 4: Simplify right side
    103,635.60x = 9,560,225,362.85
  5. Step 5: Solve for x
    x = 9,560,225,362.85/103,635.60
  6. Step 6: Final answer
    x = 92,248.47

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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.