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Finding the Fourth Proportional to 89,126.68, 133,693.98 and 49,653.88

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Solution

The fourth proportional to 89,126.68, 133,693.98 and 49,653.88 is: 74,483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,126.68 : 133,693.98 = 49,653.88 : x
  2. Step 2: Convert to fraction form
    89,126.68/133,693.98 = 49,653.88/x
  3. Step 3: Cross multiply
    89,126.68x = 133,693.98 × 49,653.88
  4. Step 4: Simplify right side
    89,126.68x = 6,638,424,839.64
  5. Step 5: Solve for x
    x = 6,638,424,839.64/89,126.68
  6. Step 6: Final answer
    x = 74,483.03

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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.