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Finding the Fourth Proportional to 117,835.56, 176,643.99 and 61,640.60

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Solution

The fourth proportional to 117,835.56, 176,643.99 and 61,640.60 is: 92,403.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,835.56 : 176,643.99 = 61,640.60 : x
  2. Step 2: Convert to fraction form
    117,835.56/176,643.99 = 61,640.60/x
  3. Step 3: Cross multiply
    117,835.56x = 176,643.99 × 61,640.60
  4. Step 4: Simplify right side
    117,835.56x = 10,888,440,646.77
  5. Step 5: Solve for x
    x = 10,888,440,646.77/117,835.56
  6. Step 6: Final answer
    x = 92,403.69

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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.