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Finding the Fourth Proportional to 97,846.68, 135,028.98 and 55,409.16

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Solution

The fourth proportional to 97,846.68, 135,028.98 and 55,409.16 is: 76,464.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,846.68 : 135,028.98 = 55,409.16 : x
  2. Step 2: Convert to fraction form
    97,846.68/135,028.98 = 55,409.16/x
  3. Step 3: Cross multiply
    97,846.68x = 135,028.98 × 55,409.16
  4. Step 4: Simplify right side
    97,846.68x = 7,481,842,357.46
  5. Step 5: Solve for x
    x = 7,481,842,357.46/97,846.68
  6. Step 6: Final answer
    x = 76,464.96

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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.