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Finding the Fourth Proportional to 61,448.84, 92,144.32 and 36,492.20

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Solution

The fourth proportional to 61,448.84, 92,144.32 and 36,492.20 is: 54,721.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,448.84 : 92,144.32 = 36,492.20 : x
  2. Step 2: Convert to fraction form
    61,448.84/92,144.32 = 36,492.20/x
  3. Step 3: Cross multiply
    61,448.84x = 92,144.32 × 36,492.20
  4. Step 4: Simplify right side
    61,448.84x = 3,362,548,954.30
  5. Step 5: Solve for x
    x = 3,362,548,954.30/61,448.84
  6. Step 6: Final answer
    x = 54,721.11

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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.