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Finding the Fourth Proportional to 235,918.80, 325,571.40 and 133,940.88

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Solution

The fourth proportional to 235,918.80, 325,571.40 and 133,940.88 is: 184,840.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,918.80 : 325,571.40 = 133,940.88 : x
  2. Step 2: Convert to fraction form
    235,918.80/325,571.40 = 133,940.88/x
  3. Step 3: Cross multiply
    235,918.80x = 325,571.40 × 133,940.88
  4. Step 4: Simplify right side
    235,918.80x = 43,607,319,818.83
  5. Step 5: Solve for x
    x = 43,607,319,818.83/235,918.80
  6. Step 6: Final answer
    x = 184,840.38

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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.