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Finding the Fourth Proportional to 435,755.07, 653,485.61 and 165,819.12

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Solution

The fourth proportional to 435,755.07, 653,485.61 and 165,819.12 is: 248,672.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,755.07 : 653,485.61 = 165,819.12 : x
  2. Step 2: Convert to fraction form
    435,755.07/653,485.61 = 165,819.12/x
  3. Step 3: Cross multiply
    435,755.07x = 653,485.61 × 165,819.12
  4. Step 4: Simplify right side
    435,755.07x = 108,360,407,953.77
  5. Step 5: Solve for x
    x = 108,360,407,953.77/435,755.07
  6. Step 6: Final answer
    x = 248,672.74

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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.