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Finding the Fourth Proportional to 89,486.95, 123,492.09 and 49,201.39

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Solution

The fourth proportional to 89,486.95, 123,492.09 and 49,201.39 is: 67,897.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,486.95 : 123,492.09 = 49,201.39 : x
  2. Step 2: Convert to fraction form
    89,486.95/123,492.09 = 49,201.39/x
  3. Step 3: Cross multiply
    89,486.95x = 123,492.09 × 49,201.39
  4. Step 4: Simplify right side
    89,486.95x = 6,075,982,482.01
  5. Step 5: Solve for x
    x = 6,075,982,482.01/89,486.95
  6. Step 6: Final answer
    x = 67,897.97

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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.