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Finding the Fourth Proportional to 188,803.34, 260,555.55 and 103,923.98

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Solution

The fourth proportional to 188,803.34, 260,555.55 and 103,923.98 is: 143,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,803.34 : 260,555.55 = 103,923.98 : x
  2. Step 2: Convert to fraction form
    188,803.34/260,555.55 = 103,923.98/x
  3. Step 3: Cross multiply
    188,803.34x = 260,555.55 × 103,923.98
  4. Step 4: Simplify right side
    188,803.34x = 27,077,969,767.09
  5. Step 5: Solve for x
    x = 27,077,969,767.09/188,803.34
  6. Step 6: Final answer
    x = 143,418.91

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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.