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Finding the Fourth Proportional to 94,994, 142,491 and 39,590

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Solution

The fourth proportional to 94,994, 142,491 and 39,590 is: 59,385

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,994 : 142,491 = 39,590 : x
  2. Step 2: Convert to fraction form
    94,994/142,491 = 39,590/x
  3. Step 3: Cross multiply
    94,994x = 142,491 × 39,590
  4. Step 4: Simplify right side
    94,994x = 5,641,218,690
  5. Step 5: Solve for x
    x = 5,641,218,690/94,994
  6. Step 6: Final answer
    x = 59,385

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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.