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Finding the Fourth Proportional to 94,401.40, 141,813.30 and 78,849.40

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Solution

The fourth proportional to 94,401.40, 141,813.30 and 78,849.40 is: 118,450.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,401.40 : 141,813.30 = 78,849.40 : x
  2. Step 2: Convert to fraction form
    94,401.40/141,813.30 = 78,849.40/x
  3. Step 3: Cross multiply
    94,401.40x = 141,813.30 × 78,849.40
  4. Step 4: Simplify right side
    94,401.40x = 11,181,893,617.02
  5. Step 5: Solve for x
    x = 11,181,893,617.02/94,401.40
  6. Step 6: Final answer
    x = 118,450.51

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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.