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Finding the Fourth Proportional to 219,988.88, 303,589.20 and 124,495.56

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Solution

The fourth proportional to 219,988.88, 303,589.20 and 124,495.56 is: 171,806.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,988.88 : 303,589.20 = 124,495.56 : x
  2. Step 2: Convert to fraction form
    219,988.88/303,589.20 = 124,495.56/x
  3. Step 3: Cross multiply
    219,988.88x = 303,589.20 × 124,495.56
  4. Step 4: Simplify right side
    219,988.88x = 37,795,507,463.95
  5. Step 5: Solve for x
    x = 37,795,507,463.95/219,988.88
  6. Step 6: Final answer
    x = 171,806.45

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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.