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Finding the Fourth Proportional to 188,508.59, 260,142.14 and 103,626.17

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Solution

The fourth proportional to 188,508.59, 260,142.14 and 103,626.17 is: 143,004.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,508.59 : 260,142.14 = 103,626.17 : x
  2. Step 2: Convert to fraction form
    188,508.59/260,142.14 = 103,626.17/x
  3. Step 3: Cross multiply
    188,508.59x = 260,142.14 × 103,626.17
  4. Step 4: Simplify right side
    188,508.59x = 26,957,533,623.80
  5. Step 5: Solve for x
    x = 26,957,533,623.80/188,508.59
  6. Step 6: Final answer
    x = 143,004.27

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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.