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Finding the Fourth Proportional to 174,628.80, 261,338.40 and 104,558.40

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Solution

The fourth proportional to 174,628.80, 261,338.40 and 104,558.40 is: 156,475.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,628.80 : 261,338.40 = 104,558.40 : x
  2. Step 2: Convert to fraction form
    174,628.80/261,338.40 = 104,558.40/x
  3. Step 3: Cross multiply
    174,628.80x = 261,338.40 × 104,558.40
  4. Step 4: Simplify right side
    174,628.80x = 27,325,124,962.56
  5. Step 5: Solve for x
    x = 27,325,124,962.56/174,628.80
  6. Step 6: Final answer
    x = 156,475.48

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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.