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Finding the Fourth Proportional to 318,763.86, 478,233.09 and 94,124.10

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Solution

The fourth proportional to 318,763.86, 478,233.09 and 94,124.10 is: 141,211.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,763.86 : 478,233.09 = 94,124.10 : x
  2. Step 2: Convert to fraction form
    318,763.86/478,233.09 = 94,124.10/x
  3. Step 3: Cross multiply
    318,763.86x = 478,233.09 × 94,124.10
  4. Step 4: Simplify right side
    318,763.86x = 45,013,259,965.72
  5. Step 5: Solve for x
    x = 45,013,259,965.72/318,763.86
  6. Step 6: Final answer
    x = 141,211.93

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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.