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Finding the Fourth Proportional to 195,412.40, 293,215.80 and 77,087.60

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Solution

The fourth proportional to 195,412.40, 293,215.80 and 77,087.60 is: 115,669.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,412.40 : 293,215.80 = 77,087.60 : x
  2. Step 2: Convert to fraction form
    195,412.40/293,215.80 = 77,087.60/x
  3. Step 3: Cross multiply
    195,412.40x = 293,215.80 × 77,087.60
  4. Step 4: Simplify right side
    195,412.40x = 22,603,302,304.08
  5. Step 5: Solve for x
    x = 22,603,302,304.08/195,412.40
  6. Step 6: Final answer
    x = 115,669.74

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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.