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Finding the Fourth Proportional to 89,087.50, 122,940.75 and 49,343.50

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Solution

The fourth proportional to 89,087.50, 122,940.75 and 49,343.50 is: 68,094.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,087.50 : 122,940.75 = 49,343.50 : x
  2. Step 2: Convert to fraction form
    89,087.50/122,940.75 = 49,343.50/x
  3. Step 3: Cross multiply
    89,087.50x = 122,940.75 × 49,343.50
  4. Step 4: Simplify right side
    89,087.50x = 6,066,326,897.63
  5. Step 5: Solve for x
    x = 6,066,326,897.63/89,087.50
  6. Step 6: Final answer
    x = 68,094.03

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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.