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Finding the Fourth Proportional to 188,992.74, 260,810.62 and 104,109.60

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Solution

The fourth proportional to 188,992.74, 260,810.62 and 104,109.60 is: 143,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,992.74 : 260,810.62 = 104,109.60 : x
  2. Step 2: Convert to fraction form
    188,992.74/260,810.62 = 104,109.60/x
  3. Step 3: Cross multiply
    188,992.74x = 260,810.62 × 104,109.60
  4. Step 4: Simplify right side
    188,992.74x = 27,152,889,323.95
  5. Step 5: Solve for x
    x = 27,152,889,323.95/188,992.74
  6. Step 6: Final answer
    x = 143,671.60

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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.