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Finding the Fourth Proportional to 73,450.80, 110,291.40 and 42,346.80

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Solution

The fourth proportional to 73,450.80, 110,291.40 and 42,346.80 is: 63,586.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,450.80 : 110,291.40 = 42,346.80 : x
  2. Step 2: Convert to fraction form
    73,450.80/110,291.40 = 42,346.80/x
  3. Step 3: Cross multiply
    73,450.80x = 110,291.40 × 42,346.80
  4. Step 4: Simplify right side
    73,450.80x = 4,670,487,857.52
  5. Step 5: Solve for x
    x = 4,670,487,857.52/73,450.80
  6. Step 6: Final answer
    x = 63,586.62

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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.