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Finding the Fourth Proportional to 188,903.33, 260,698.45 and 104,020.39

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Solution

The fourth proportional to 188,903.33, 260,698.45 and 104,020.39 is: 143,554.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,903.33 : 260,698.45 = 104,020.39 : x
  2. Step 2: Convert to fraction form
    188,903.33/260,698.45 = 104,020.39/x
  3. Step 3: Cross multiply
    188,903.33x = 260,698.45 × 104,020.39
  4. Step 4: Simplify right side
    188,903.33x = 27,117,953,529.60
  5. Step 5: Solve for x
    x = 27,117,953,529.60/188,903.33
  6. Step 6: Final answer
    x = 143,554.66

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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.