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Finding the Fourth Proportional to 94,328, 141,492.96 and 28,664

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Solution

The fourth proportional to 94,328, 141,492.96 and 28,664 is: 42,996.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,328 : 141,492.96 = 28,664 : x
  2. Step 2: Convert to fraction form
    94,328/141,492.96 = 28,664/x
  3. Step 3: Cross multiply
    94,328x = 141,492.96 × 28,664
  4. Step 4: Simplify right side
    94,328x = 4,055,754,205.44
  5. Step 5: Solve for x
    x = 4,055,754,205.44/94,328
  6. Step 6: Final answer
    x = 42,996.29

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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.