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Finding the Fourth Proportional to 188,431.56, 260,025.93 and 103,532.22

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Solution

The fourth proportional to 188,431.56, 260,025.93 and 103,532.22 is: 142,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,431.56 : 260,025.93 = 103,532.22 : x
  2. Step 2: Convert to fraction form
    188,431.56/260,025.93 = 103,532.22/x
  3. Step 3: Cross multiply
    188,431.56x = 260,025.93 × 103,532.22
  4. Step 4: Simplify right side
    188,431.56x = 26,921,061,790.46
  5. Step 5: Solve for x
    x = 26,921,061,790.46/188,431.56
  6. Step 6: Final answer
    x = 142,869.18

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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.