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Finding the Fourth Proportional to 222,907.58, 307,731.78 and 171,808.32

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Solution

The fourth proportional to 222,907.58, 307,731.78 and 171,808.32 is: 237,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,907.58 : 307,731.78 = 171,808.32 : x
  2. Step 2: Convert to fraction form
    222,907.58/307,731.78 = 171,808.32/x
  3. Step 3: Cross multiply
    222,907.58x = 307,731.78 × 171,808.32
  4. Step 4: Simplify right side
    222,907.58x = 52,870,880,132.41
  5. Step 5: Solve for x
    x = 52,870,880,132.41/222,907.58
  6. Step 6: Final answer
    x = 237,187.45

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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.