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Finding the Fourth Proportional to 350,930.16, 526,602.60 and 129,469.68

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Solution

The fourth proportional to 350,930.16, 526,602.60 and 129,469.68 is: 194,281.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,930.16 : 526,602.60 = 129,469.68 : x
  2. Step 2: Convert to fraction form
    350,930.16/526,602.60 = 129,469.68/x
  3. Step 3: Cross multiply
    350,930.16x = 526,602.60 × 129,469.68
  4. Step 4: Simplify right side
    350,930.16x = 68,179,070,109.17
  5. Step 5: Solve for x
    x = 68,179,070,109.17/350,930.16
  6. Step 6: Final answer
    x = 194,281.02

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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.