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Finding the Fourth Proportional to 89,482.72, 123,486.40 and 49,200.60

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Solution

The fourth proportional to 89,482.72, 123,486.40 and 49,200.60 is: 67,896.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,482.72 : 123,486.40 = 49,200.60 : x
  2. Step 2: Convert to fraction form
    89,482.72/123,486.40 = 49,200.60/x
  3. Step 3: Cross multiply
    89,482.72x = 123,486.40 × 49,200.60
  4. Step 4: Simplify right side
    89,482.72x = 6,075,604,971.84
  5. Step 5: Solve for x
    x = 6,075,604,971.84/89,482.72
  6. Step 6: Final answer
    x = 67,896.96

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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.