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Finding the Fourth Proportional to 223,170.32, 307,975.56 and 122,574.80

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Solution

The fourth proportional to 223,170.32, 307,975.56 and 122,574.80 is: 169,153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,170.32 : 307,975.56 = 122,574.80 : x
  2. Step 2: Convert to fraction form
    223,170.32/307,975.56 = 122,574.80/x
  3. Step 3: Cross multiply
    223,170.32x = 307,975.56 × 122,574.80
  4. Step 4: Simplify right side
    223,170.32x = 37,750,042,671.89
  5. Step 5: Solve for x
    x = 37,750,042,671.89/223,170.32
  6. Step 6: Final answer
    x = 169,153.51

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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.