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Finding the Fourth Proportional to 76,803.54, 106,008.93 and 50,019.54

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Solution

The fourth proportional to 76,803.54, 106,008.93 and 50,019.54 is: 69,040.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,803.54 : 106,008.93 = 50,019.54 : x
  2. Step 2: Convert to fraction form
    76,803.54/106,008.93 = 50,019.54/x
  3. Step 3: Cross multiply
    76,803.54x = 106,008.93 × 50,019.54
  4. Step 4: Simplify right side
    76,803.54x = 5,302,517,914.49
  5. Step 5: Solve for x
    x = 5,302,517,914.49/76,803.54
  6. Step 6: Final answer
    x = 69,040.02

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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.