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Finding the Fourth Proportional to 176,021.40, 264,161.70 and 70,915.80

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Solution

The fourth proportional to 176,021.40, 264,161.70 and 70,915.80 is: 106,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,021.40 : 264,161.70 = 70,915.80 : x
  2. Step 2: Convert to fraction form
    176,021.40/264,161.70 = 70,915.80/x
  3. Step 3: Cross multiply
    176,021.40x = 264,161.70 × 70,915.80
  4. Step 4: Simplify right side
    176,021.40x = 18,733,238,284.86
  5. Step 5: Solve for x
    x = 18,733,238,284.86/176,021.40
  6. Step 6: Final answer
    x = 106,425.91

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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.