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Finding the Fourth Proportional to 226,545, 312,632.46 and 125,943

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Solution

The fourth proportional to 226,545, 312,632.46 and 125,943 is: 173,801.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,545 : 312,632.46 = 125,943 : x
  2. Step 2: Convert to fraction form
    226,545/312,632.46 = 125,943/x
  3. Step 3: Cross multiply
    226,545x = 312,632.46 × 125,943
  4. Step 4: Simplify right side
    226,545x = 39,373,869,909.78
  5. Step 5: Solve for x
    x = 39,373,869,909.78/226,545
  6. Step 6: Final answer
    x = 173,801.54

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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.