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Finding the Fourth Proportional to 318,986.16, 478,572.76 and 94,352.48

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Solution

The fourth proportional to 318,986.16, 478,572.76 and 94,352.48 is: 141,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,986.16 : 478,572.76 = 94,352.48 : x
  2. Step 2: Convert to fraction form
    318,986.16/478,572.76 = 94,352.48/x
  3. Step 3: Cross multiply
    318,986.16x = 478,572.76 × 94,352.48
  4. Step 4: Simplify right side
    318,986.16x = 45,154,526,766.44
  5. Step 5: Solve for x
    x = 45,154,526,766.44/318,986.16
  6. Step 6: Final answer
    x = 141,556.38

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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.