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Finding the Fourth Proportional to 188,584.50, 260,247.42 and 103,707.84

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Solution

The fourth proportional to 188,584.50, 260,247.42 and 103,707.84 is: 143,117.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,584.50 : 260,247.42 = 103,707.84 : x
  2. Step 2: Convert to fraction form
    188,584.50/260,247.42 = 103,707.84/x
  3. Step 3: Cross multiply
    188,584.50x = 260,247.42 × 103,707.84
  4. Step 4: Simplify right side
    188,584.50x = 26,989,697,793.77
  5. Step 5: Solve for x
    x = 26,989,697,793.77/188,584.50
  6. Step 6: Final answer
    x = 143,117.26

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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.