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Finding the Fourth Proportional to 186,021.60, 256,707 and 101,137.92

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Solution

The fourth proportional to 186,021.60, 256,707 and 101,137.92 is: 139,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,021.60 : 256,707 = 101,137.92 : x
  2. Step 2: Convert to fraction form
    186,021.60/256,707 = 101,137.92/x
  3. Step 3: Cross multiply
    186,021.60x = 256,707 × 101,137.92
  4. Step 4: Simplify right side
    186,021.60x = 25,962,812,029.44
  5. Step 5: Solve for x
    x = 25,962,812,029.44/186,021.60
  6. Step 6: Final answer
    x = 139,568.80

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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.