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Finding the Fourth Proportional to 434,636.91, 651,948.44 and 119,093.82

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Solution

The fourth proportional to 434,636.91, 651,948.44 and 119,093.82 is: 178,638.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,636.91 : 651,948.44 = 119,093.82 : x
  2. Step 2: Convert to fraction form
    434,636.91/651,948.44 = 119,093.82/x
  3. Step 3: Cross multiply
    434,636.91x = 651,948.44 × 119,093.82
  4. Step 4: Simplify right side
    434,636.91x = 77,643,030,460.38
  5. Step 5: Solve for x
    x = 77,643,030,460.38/434,636.91
  6. Step 6: Final answer
    x = 178,638.83

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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.