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Finding the Fourth Proportional to 173,283.44, 239,147.22 and 105,284.74

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Solution

The fourth proportional to 173,283.44, 239,147.22 and 105,284.74 is: 145,302.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,283.44 : 239,147.22 = 105,284.74 : x
  2. Step 2: Convert to fraction form
    173,283.44/239,147.22 = 105,284.74/x
  3. Step 3: Cross multiply
    173,283.44x = 239,147.22 × 105,284.74
  4. Step 4: Simplify right side
    173,283.44x = 25,178,552,879.42
  5. Step 5: Solve for x
    x = 25,178,552,879.42/173,283.44
  6. Step 6: Final answer
    x = 145,302.71

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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.