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Finding the Fourth Proportional to 318,753.90, 478,218.16 and 94,114.26

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Solution

The fourth proportional to 318,753.90, 478,218.16 and 94,114.26 is: 141,197.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,753.90 : 478,218.16 = 94,114.26 : x
  2. Step 2: Convert to fraction form
    318,753.90/478,218.16 = 94,114.26/x
  3. Step 3: Cross multiply
    318,753.90x = 478,218.16 × 94,114.26
  4. Step 4: Simplify right side
    318,753.90x = 45,007,148,246.96
  5. Step 5: Solve for x
    x = 45,007,148,246.96/318,753.90
  6. Step 6: Final answer
    x = 141,197.17

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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.