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Finding the Fourth Proportional to 86,647.37, 119,529.81 and 59,804.78

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Solution

The fourth proportional to 86,647.37, 119,529.81 and 59,804.78 is: 82,500.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,647.37 : 119,529.81 = 59,804.78 : x
  2. Step 2: Convert to fraction form
    86,647.37/119,529.81 = 59,804.78/x
  3. Step 3: Cross multiply
    86,647.37x = 119,529.81 × 59,804.78
  4. Step 4: Simplify right side
    86,647.37x = 7,148,453,392.84
  5. Step 5: Solve for x
    x = 7,148,453,392.84/86,647.37
  6. Step 6: Final answer
    x = 82,500.53

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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.