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Finding the Fourth Proportional to 222,777.88, 307,405.06 and 127,290.76

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Solution

The fourth proportional to 222,777.88, 307,405.06 and 127,290.76 is: 175,645.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,777.88 : 307,405.06 = 127,290.76 : x
  2. Step 2: Convert to fraction form
    222,777.88/307,405.06 = 127,290.76/x
  3. Step 3: Cross multiply
    222,777.88x = 307,405.06 × 127,290.76
  4. Step 4: Simplify right side
    222,777.88x = 39,129,823,715.25
  5. Step 5: Solve for x
    x = 39,129,823,715.25/222,777.88
  6. Step 6: Final answer
    x = 175,645.01

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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.