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Finding the Fourth Proportional to 188,888.49, 260,667.86 and 104,008.59

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Solution

The fourth proportional to 188,888.49, 260,667.86 and 104,008.59 is: 143,532.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,888.49 : 260,667.86 = 104,008.59 : x
  2. Step 2: Convert to fraction form
    188,888.49/260,667.86 = 104,008.59/x
  3. Step 3: Cross multiply
    188,888.49x = 260,667.86 × 104,008.59
  4. Step 4: Simplify right side
    188,888.49x = 27,111,696,576.92
  5. Step 5: Solve for x
    x = 27,111,696,576.92/188,888.49
  6. Step 6: Final answer
    x = 143,532.81

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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.