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Finding the Fourth Proportional to 178,483.10, 267,638.52 and 103,622.09

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Solution

The fourth proportional to 178,483.10, 267,638.52 and 103,622.09 is: 155,383.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,483.10 : 267,638.52 = 103,622.09 : x
  2. Step 2: Convert to fraction form
    178,483.10/267,638.52 = 103,622.09/x
  3. Step 3: Cross multiply
    178,483.10x = 267,638.52 × 103,622.09
  4. Step 4: Simplify right side
    178,483.10x = 27,733,262,806.91
  5. Step 5: Solve for x
    x = 27,733,262,806.91/178,483.10
  6. Step 6: Final answer
    x = 155,383.13

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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.