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Finding the Fourth Proportional to 352,279.48, 528,477.90 and 115,558.60

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Solution

The fourth proportional to 352,279.48, 528,477.90 and 115,558.60 is: 173,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,279.48 : 528,477.90 = 115,558.60 : x
  2. Step 2: Convert to fraction form
    352,279.48/528,477.90 = 115,558.60/x
  3. Step 3: Cross multiply
    352,279.48x = 528,477.90 × 115,558.60
  4. Step 4: Simplify right side
    352,279.48x = 61,070,166,254.94
  5. Step 5: Solve for x
    x = 61,070,166,254.94/352,279.48
  6. Step 6: Final answer
    x = 173,357.15

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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.