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Finding the Fourth Proportional to 222,857.07, 307,543.68 and 127,366.98

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Solution

The fourth proportional to 222,857.07, 307,543.68 and 127,366.98 is: 175,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,857.07 : 307,543.68 = 127,366.98 : x
  2. Step 2: Convert to fraction form
    222,857.07/307,543.68 = 127,366.98/x
  3. Step 3: Cross multiply
    222,857.07x = 307,543.68 × 127,366.98
  4. Step 4: Simplify right side
    222,857.07x = 39,170,909,739.69
  5. Step 5: Solve for x
    x = 39,170,909,739.69/222,857.07
  6. Step 6: Final answer
    x = 175,766.96

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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.