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Finding the Fourth Proportional to 89,912.53, 124,078.03 and 49,627.05

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Solution

The fourth proportional to 89,912.53, 124,078.03 and 49,627.05 is: 68,484.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,912.53 : 124,078.03 = 49,627.05 : x
  2. Step 2: Convert to fraction form
    89,912.53/124,078.03 = 49,627.05/x
  3. Step 3: Cross multiply
    89,912.53x = 124,078.03 × 49,627.05
  4. Step 4: Simplify right side
    89,912.53x = 6,157,626,598.71
  5. Step 5: Solve for x
    x = 6,157,626,598.71/89,912.53
  6. Step 6: Final answer
    x = 68,484.63

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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.