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Finding the Fourth Proportional to 318,669.93, 478,086.91 and 94,021.29

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Solution

The fourth proportional to 318,669.93, 478,086.91 and 94,021.29 is: 141,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,669.93 : 478,086.91 = 94,021.29 : x
  2. Step 2: Convert to fraction form
    318,669.93/478,086.91 = 94,021.29/x
  3. Step 3: Cross multiply
    318,669.93x = 478,086.91 × 94,021.29
  4. Step 4: Simplify right side
    318,669.93x = 44,950,347,775.26
  5. Step 5: Solve for x
    x = 44,950,347,775.26/318,669.93
  6. Step 6: Final answer
    x = 141,056.13

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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.