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Finding the Fourth Proportional to 223,410.72, 308,307.60 and 122,809.44

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Solution

The fourth proportional to 223,410.72, 308,307.60 and 122,809.44 is: 169,477.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,410.72 : 308,307.60 = 122,809.44 : x
  2. Step 2: Convert to fraction form
    223,410.72/308,307.60 = 122,809.44/x
  3. Step 3: Cross multiply
    223,410.72x = 308,307.60 × 122,809.44
  4. Step 4: Simplify right side
    223,410.72x = 37,863,083,703.74
  5. Step 5: Solve for x
    x = 37,863,083,703.74/223,410.72
  6. Step 6: Final answer
    x = 169,477.47

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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.