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Finding the Fourth Proportional to 355,897.74, 533,736.76 and 103,196.85

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Solution

The fourth proportional to 355,897.74, 533,736.76 and 103,196.85 is: 154,763.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,897.74 : 533,736.76 = 103,196.85 : x
  2. Step 2: Convert to fraction form
    355,897.74/533,736.76 = 103,196.85/x
  3. Step 3: Cross multiply
    355,897.74x = 533,736.76 × 103,196.85
  4. Step 4: Simplify right side
    355,897.74x = 55,079,954,373.81
  5. Step 5: Solve for x
    x = 55,079,954,373.81/355,897.74
  6. Step 6: Final answer
    x = 154,763.43

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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.