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Finding the Fourth Proportional to 103,695.98, 155,499.94 and 43,751.35

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Solution

The fourth proportional to 103,695.98, 155,499.94 and 43,751.35 is: 65,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,695.98 : 155,499.94 = 43,751.35 : x
  2. Step 2: Convert to fraction form
    103,695.98/155,499.94 = 43,751.35/x
  3. Step 3: Cross multiply
    103,695.98x = 155,499.94 × 43,751.35
  4. Step 4: Simplify right side
    103,695.98x = 6,803,332,299.92
  5. Step 5: Solve for x
    x = 6,803,332,299.92/103,695.98
  6. Step 6: Final answer
    x = 65,608.45

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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.