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Finding the Fourth Proportional to 74,534.30, 111,801.45 and 51,206.30

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Solution

The fourth proportional to 74,534.30, 111,801.45 and 51,206.30 is: 76,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,534.30 : 111,801.45 = 51,206.30 : x
  2. Step 2: Convert to fraction form
    74,534.30/111,801.45 = 51,206.30/x
  3. Step 3: Cross multiply
    74,534.30x = 111,801.45 × 51,206.30
  4. Step 4: Simplify right side
    74,534.30x = 5,724,938,589.14
  5. Step 5: Solve for x
    x = 5,724,938,589.14/74,534.30
  6. Step 6: Final answer
    x = 76,809.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.