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Finding the Fourth Proportional to 188,555.27, 260,207.25 and 103,677.80

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Solution

The fourth proportional to 188,555.27, 260,207.25 and 103,677.80 is: 143,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,555.27 : 260,207.25 = 103,677.80 : x
  2. Step 2: Convert to fraction form
    188,555.27/260,207.25 = 103,677.80/x
  3. Step 3: Cross multiply
    188,555.27x = 260,207.25 × 103,677.80
  4. Step 4: Simplify right side
    188,555.27x = 26,977,715,224.05
  5. Step 5: Solve for x
    x = 26,977,715,224.05/188,555.27
  6. Step 6: Final answer
    x = 143,075.90

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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.