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Finding the Fourth Proportional to 94,885.96, 142,398.30 and 69,993.11

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Solution

The fourth proportional to 94,885.96, 142,398.30 and 69,993.11 is: 105,040.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,885.96 : 142,398.30 = 69,993.11 : x
  2. Step 2: Convert to fraction form
    94,885.96/142,398.30 = 69,993.11/x
  3. Step 3: Cross multiply
    94,885.96x = 142,398.30 × 69,993.11
  4. Step 4: Simplify right side
    94,885.96x = 9,966,900,494.18
  5. Step 5: Solve for x
    x = 9,966,900,494.18/94,885.96
  6. Step 6: Final answer
    x = 105,040.84

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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.