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Finding the Fourth Proportional to 103,895.04, 155,796.48 and 64,450.56

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Solution

The fourth proportional to 103,895.04, 155,796.48 and 64,450.56 is: 96,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,895.04 : 155,796.48 = 64,450.56 : x
  2. Step 2: Convert to fraction form
    103,895.04/155,796.48 = 64,450.56/x
  3. Step 3: Cross multiply
    103,895.04x = 155,796.48 × 64,450.56
  4. Step 4: Simplify right side
    103,895.04x = 10,041,170,382.03
  5. Step 5: Solve for x
    x = 10,041,170,382.03/103,895.04
  6. Step 6: Final answer
    x = 96,647.25

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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.