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Finding the Fourth Proportional to 94,392, 141,588 and 38,989.44

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Solution

The fourth proportional to 94,392, 141,588 and 38,989.44 is: 58,484.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,392 : 141,588 = 38,989.44 : x
  2. Step 2: Convert to fraction form
    94,392/141,588 = 38,989.44/x
  3. Step 3: Cross multiply
    94,392x = 141,588 × 38,989.44
  4. Step 4: Simplify right side
    94,392x = 5,520,436,830.72
  5. Step 5: Solve for x
    x = 5,520,436,830.72/94,392
  6. Step 6: Final answer
    x = 58,484.16

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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.