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Finding the Fourth Proportional to 94,257, 141,385.50 and 28,593

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Solution

The fourth proportional to 94,257, 141,385.50 and 28,593 is: 42,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,257 : 141,385.50 = 28,593 : x
  2. Step 2: Convert to fraction form
    94,257/141,385.50 = 28,593/x
  3. Step 3: Cross multiply
    94,257x = 141,385.50 × 28,593
  4. Step 4: Simplify right side
    94,257x = 4,042,635,601.50
  5. Step 5: Solve for x
    x = 4,042,635,601.50/94,257
  6. Step 6: Final answer
    x = 42,889.50

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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.