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Finding the Fourth Proportional to 219,707.52, 303,211.92 and 124,215.12

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Solution

The fourth proportional to 219,707.52, 303,211.92 and 124,215.12 is: 171,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,707.52 : 303,211.92 = 124,215.12 : x
  2. Step 2: Convert to fraction form
    219,707.52/303,211.92 = 124,215.12/x
  3. Step 3: Cross multiply
    219,707.52x = 303,211.92 × 124,215.12
  4. Step 4: Simplify right side
    219,707.52x = 37,663,505,028.23
  5. Step 5: Solve for x
    x = 37,663,505,028.23/219,707.52
  6. Step 6: Final answer
    x = 171,425.65

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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.