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Finding the Fourth Proportional to 188,551.45, 260,143.41 and 124,002.28

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Solution

The fourth proportional to 188,551.45, 260,143.41 and 124,002.28 is: 171,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,551.45 : 260,143.41 = 124,002.28 : x
  2. Step 2: Convert to fraction form
    188,551.45/260,143.41 = 124,002.28/x
  3. Step 3: Cross multiply
    188,551.45x = 260,143.41 × 124,002.28
  4. Step 4: Simplify right side
    188,551.45x = 32,258,375,966.97
  5. Step 5: Solve for x
    x = 32,258,375,966.97/188,551.45
  6. Step 6: Final answer
    x = 171,085.27

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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.