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Finding the Fourth Proportional to 61,492.80, 92,239.02 and 19,376.40

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Solution

The fourth proportional to 61,492.80, 92,239.02 and 19,376.40 is: 29,064.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,492.80 : 92,239.02 = 19,376.40 : x
  2. Step 2: Convert to fraction form
    61,492.80/92,239.02 = 19,376.40/x
  3. Step 3: Cross multiply
    61,492.80x = 92,239.02 × 19,376.40
  4. Step 4: Simplify right side
    61,492.80x = 1,787,260,147.13
  5. Step 5: Solve for x
    x = 1,787,260,147.13/61,492.80
  6. Step 6: Final answer
    x = 29,064.54

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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.