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Finding the Fourth Proportional to 219,698.62, 303,172.32 and 124,199.62

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Solution

The fourth proportional to 219,698.62, 303,172.32 and 124,199.62 is: 171,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,698.62 : 303,172.32 = 124,199.62 : x
  2. Step 2: Convert to fraction form
    219,698.62/303,172.32 = 124,199.62/x
  3. Step 3: Cross multiply
    219,698.62x = 303,172.32 × 124,199.62
  4. Step 4: Simplify right side
    219,698.62x = 37,653,886,938.52
  5. Step 5: Solve for x
    x = 37,653,886,938.52/219,698.62
  6. Step 6: Final answer
    x = 171,388.82

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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.