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Finding the Fourth Proportional to 252,627.91, 348,628.94 and 139,448.23

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Solution

The fourth proportional to 252,627.91, 348,628.94 and 139,448.23 is: 192,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,627.91 : 348,628.94 = 139,448.23 : x
  2. Step 2: Convert to fraction form
    252,627.91/348,628.94 = 139,448.23/x
  3. Step 3: Cross multiply
    252,627.91x = 348,628.94 × 139,448.23
  4. Step 4: Simplify right side
    252,627.91x = 48,615,688,609.78
  5. Step 5: Solve for x
    x = 48,615,688,609.78/252,627.91
  6. Step 6: Final answer
    x = 192,439.90

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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.