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Finding the Fourth Proportional to 355,897.17, 533,735.90 and 103,196.28

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Solution

The fourth proportional to 355,897.17, 533,735.90 and 103,196.28 is: 154,762.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,897.17 : 533,735.90 = 103,196.28 : x
  2. Step 2: Convert to fraction form
    355,897.17/533,735.90 = 103,196.28/x
  3. Step 3: Cross multiply
    355,897.17x = 533,735.90 × 103,196.28
  4. Step 4: Simplify right side
    355,897.17x = 55,079,561,448.46
  5. Step 5: Solve for x
    x = 55,079,561,448.46/355,897.17
  6. Step 6: Final answer
    x = 154,762.57

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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.