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Finding the Fourth Proportional to 152,609.40, 210,603.42 and 84,629.16

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Solution

The fourth proportional to 152,609.40, 210,603.42 and 84,629.16 is: 116,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,609.40 : 210,603.42 = 84,629.16 : x
  2. Step 2: Convert to fraction form
    152,609.40/210,603.42 = 84,629.16/x
  3. Step 3: Cross multiply
    152,609.40x = 210,603.42 × 84,629.16
  4. Step 4: Simplify right side
    152,609.40x = 17,823,190,527.73
  5. Step 5: Solve for x
    x = 17,823,190,527.73/152,609.40
  6. Step 6: Final answer
    x = 116,789.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.