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Finding the Fourth Proportional to 352,311, 528,521.52 and 115,599.84

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Solution

The fourth proportional to 352,311, 528,521.52 and 115,599.84 is: 173,417.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,311 : 528,521.52 = 115,599.84 : x
  2. Step 2: Convert to fraction form
    352,311/528,521.52 = 115,599.84/x
  3. Step 3: Cross multiply
    352,311x = 528,521.52 × 115,599.84
  4. Step 4: Simplify right side
    352,311x = 61,097,003,148.56
  5. Step 5: Solve for x
    x = 61,097,003,148.56/352,311
  6. Step 6: Final answer
    x = 173,417.81

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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.