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Finding the Fourth Proportional to 230,133.54, 317,682.57 and 154,725.78

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Solution

The fourth proportional to 230,133.54, 317,682.57 and 154,725.78 is: 213,587.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,133.54 : 317,682.57 = 154,725.78 : x
  2. Step 2: Convert to fraction form
    230,133.54/317,682.57 = 154,725.78/x
  3. Step 3: Cross multiply
    230,133.54x = 317,682.57 × 154,725.78
  4. Step 4: Simplify right side
    230,133.54x = 49,153,683,435.65
  5. Step 5: Solve for x
    x = 49,153,683,435.65/230,133.54
  6. Step 6: Final answer
    x = 213,587.66

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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.