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Finding the Fourth Proportional to 161,200.80, 241,628.40 and 61,322.40

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Solution

The fourth proportional to 161,200.80, 241,628.40 and 61,322.40 is: 91,917.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,200.80 : 241,628.40 = 61,322.40 : x
  2. Step 2: Convert to fraction form
    161,200.80/241,628.40 = 61,322.40/x
  3. Step 3: Cross multiply
    161,200.80x = 241,628.40 × 61,322.40
  4. Step 4: Simplify right side
    161,200.80x = 14,817,233,396.16
  5. Step 5: Solve for x
    x = 14,817,233,396.16/161,200.80
  6. Step 6: Final answer
    x = 91,917.87

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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.