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Finding the Fourth Proportional to 346,636.26, 520,260.66 and 169,299.72

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Solution

The fourth proportional to 346,636.26, 520,260.66 and 169,299.72 is: 254,099.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,636.26 : 520,260.66 = 169,299.72 : x
  2. Step 2: Convert to fraction form
    346,636.26/520,260.66 = 169,299.72/x
  3. Step 3: Cross multiply
    346,636.26x = 520,260.66 × 169,299.72
  4. Step 4: Simplify right side
    346,636.26x = 88,079,984,065.02
  5. Step 5: Solve for x
    x = 88,079,984,065.02/346,636.26
  6. Step 6: Final answer
    x = 254,099.16

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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.