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Finding the Fourth Proportional to 69,125.70, 103,662.63 and 29,662.50

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Solution

The fourth proportional to 69,125.70, 103,662.63 and 29,662.50 is: 44,482.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,125.70 : 103,662.63 = 29,662.50 : x
  2. Step 2: Convert to fraction form
    69,125.70/103,662.63 = 29,662.50/x
  3. Step 3: Cross multiply
    69,125.70x = 103,662.63 × 29,662.50
  4. Step 4: Simplify right side
    69,125.70x = 3,074,892,762.38
  5. Step 5: Solve for x
    x = 3,074,892,762.38/69,125.70
  6. Step 6: Final answer
    x = 44,482.63

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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.