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Finding the Fourth Proportional to 192,119.41, 265,128.87 and 106,078.15

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Solution

The fourth proportional to 192,119.41, 265,128.87 and 106,078.15 is: 146,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,119.41 : 265,128.87 = 106,078.15 : x
  2. Step 2: Convert to fraction form
    192,119.41/265,128.87 = 106,078.15/x
  3. Step 3: Cross multiply
    192,119.41x = 265,128.87 × 106,078.15
  4. Step 4: Simplify right side
    192,119.41x = 28,124,380,041.19
  5. Step 5: Solve for x
    x = 28,124,380,041.19/192,119.41
  6. Step 6: Final answer
    x = 146,390.10

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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.