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Finding the Fourth Proportional to 89,805.21, 123,946.00 and 54,014.95

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Solution

The fourth proportional to 89,805.21, 123,946.00 and 54,014.95 is: 74,549.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,805.21 : 123,946.00 = 54,014.95 : x
  2. Step 2: Convert to fraction form
    89,805.21/123,946.00 = 54,014.95/x
  3. Step 3: Cross multiply
    89,805.21x = 123,946.00 × 54,014.95
  4. Step 4: Simplify right side
    89,805.21x = 6,694,937,012.60
  5. Step 5: Solve for x
    x = 6,694,937,012.60/89,805.21
  6. Step 6: Final answer
    x = 74,549.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.