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Finding the Fourth Proportional to 435,455.81, 653,186.96 and 119,930.03

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Solution

The fourth proportional to 435,455.81, 653,186.96 and 119,930.03 is: 179,895.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,455.81 : 653,186.96 = 119,930.03 : x
  2. Step 2: Convert to fraction form
    435,455.81/653,186.96 = 119,930.03/x
  3. Step 3: Cross multiply
    435,455.81x = 653,186.96 × 119,930.03
  4. Step 4: Simplify right side
    435,455.81x = 78,336,731,108.76
  5. Step 5: Solve for x
    x = 78,336,731,108.76/435,455.81
  6. Step 6: Final answer
    x = 179,895.94

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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.