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Finding the Fourth Proportional to 318,680.92, 478,103.40 and 94,032.28

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Solution

The fourth proportional to 318,680.92, 478,103.40 and 94,032.28 is: 141,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,680.92 : 478,103.40 = 94,032.28 : x
  2. Step 2: Convert to fraction form
    318,680.92/478,103.40 = 94,032.28/x
  3. Step 3: Cross multiply
    318,680.92x = 478,103.40 × 94,032.28
  4. Step 4: Simplify right side
    318,680.92x = 44,957,152,777.75
  5. Step 5: Solve for x
    x = 44,957,152,777.75/318,680.92
  6. Step 6: Final answer
    x = 141,072.62

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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.