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Finding the Fourth Proportional to 352,279, 528,307.50 and 115,566.52

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Solution

The fourth proportional to 352,279, 528,307.50 and 115,566.52 is: 173,313.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,279 : 528,307.50 = 115,566.52 : x
  2. Step 2: Convert to fraction form
    352,279/528,307.50 = 115,566.52/x
  3. Step 3: Cross multiply
    352,279x = 528,307.50 × 115,566.52
  4. Step 4: Simplify right side
    352,279x = 61,054,659,264.90
  5. Step 5: Solve for x
    x = 61,054,659,264.90/352,279
  6. Step 6: Final answer
    x = 173,313.37

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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.