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Finding the Fourth Proportional to 188,907.39, 260,607.86 and 127,633.80

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Solution

The fourth proportional to 188,907.39, 260,607.86 and 127,633.80 is: 176,077.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,907.39 : 260,607.86 = 127,633.80 : x
  2. Step 2: Convert to fraction form
    188,907.39/260,607.86 = 127,633.80/x
  3. Step 3: Cross multiply
    188,907.39x = 260,607.86 × 127,633.80
  4. Step 4: Simplify right side
    188,907.39x = 33,262,370,843.50
  5. Step 5: Solve for x
    x = 33,262,370,843.50/188,907.39
  6. Step 6: Final answer
    x = 176,077.66

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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.