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Finding the Fourth Proportional to 222,485.60, 307,085.07 and 127,047.66

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Solution

The fourth proportional to 222,485.60, 307,085.07 and 127,047.66 is: 175,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,485.60 : 307,085.07 = 127,047.66 : x
  2. Step 2: Convert to fraction form
    222,485.60/307,085.07 = 127,047.66/x
  3. Step 3: Cross multiply
    222,485.60x = 307,085.07 × 127,047.66
  4. Step 4: Simplify right side
    222,485.60x = 39,014,439,564.44
  5. Step 5: Solve for x
    x = 39,014,439,564.44/222,485.60
  6. Step 6: Final answer
    x = 175,357.15

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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.