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Finding the Fourth Proportional to 252,630.81, 348,629.81 and 139,452.75

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Solution

The fourth proportional to 252,630.81, 348,629.81 and 139,452.75 is: 192,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,630.81 : 348,629.81 = 139,452.75 : x
  2. Step 2: Convert to fraction form
    252,630.81/348,629.81 = 139,452.75/x
  3. Step 3: Cross multiply
    252,630.81x = 348,629.81 × 139,452.75
  4. Step 4: Simplify right side
    252,630.81x = 48,617,385,039.21
  5. Step 5: Solve for x
    x = 48,617,385,039.21/252,630.81
  6. Step 6: Final answer
    x = 192,444.40

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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.