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Finding the Fourth Proportional to 175,262.40, 262,893.60 and 105,220.80

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Solution

The fourth proportional to 175,262.40, 262,893.60 and 105,220.80 is: 157,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,262.40 : 262,893.60 = 105,220.80 : x
  2. Step 2: Convert to fraction form
    175,262.40/262,893.60 = 105,220.80/x
  3. Step 3: Cross multiply
    175,262.40x = 262,893.60 × 105,220.80
  4. Step 4: Simplify right side
    175,262.40x = 27,661,874,906.88
  5. Step 5: Solve for x
    x = 27,661,874,906.88/175,262.40
  6. Step 6: Final answer
    x = 157,831.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.