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Finding the Fourth Proportional to 104,425.60, 156,638.40 and 34,307.20

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Solution

The fourth proportional to 104,425.60, 156,638.40 and 34,307.20 is: 51,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,425.60 : 156,638.40 = 34,307.20 : x
  2. Step 2: Convert to fraction form
    104,425.60/156,638.40 = 34,307.20/x
  3. Step 3: Cross multiply
    104,425.60x = 156,638.40 × 34,307.20
  4. Step 4: Simplify right side
    104,425.60x = 5,373,824,916.48
  5. Step 5: Solve for x
    x = 5,373,824,916.48/104,425.60
  6. Step 6: Final answer
    x = 51,460.80

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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.