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Finding the Fourth Proportional to 188,567.76, 260,224.50 and 103,690.32

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Solution

The fourth proportional to 188,567.76, 260,224.50 and 103,690.32 is: 143,093.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,567.76 : 260,224.50 = 103,690.32 : x
  2. Step 2: Convert to fraction form
    188,567.76/260,224.50 = 103,690.32/x
  3. Step 3: Cross multiply
    188,567.76x = 260,224.50 × 103,690.32
  4. Step 4: Simplify right side
    188,567.76x = 26,982,761,676.84
  5. Step 5: Solve for x
    x = 26,982,761,676.84/188,567.76
  6. Step 6: Final answer
    x = 143,093.19

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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.