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Finding the Fourth Proportional to 68,155.50, 94,054.56 and 37,940.16

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Solution

The fourth proportional to 68,155.50, 94,054.56 and 37,940.16 is: 52,357.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,155.50 : 94,054.56 = 37,940.16 : x
  2. Step 2: Convert to fraction form
    68,155.50/94,054.56 = 37,940.16/x
  3. Step 3: Cross multiply
    68,155.50x = 94,054.56 × 37,940.16
  4. Step 4: Simplify right side
    68,155.50x = 3,568,445,055.13
  5. Step 5: Solve for x
    x = 3,568,445,055.13/68,155.50
  6. Step 6: Final answer
    x = 52,357.40

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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.