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Finding the Fourth Proportional to 352,448.60, 528,738.90 and 115,859.48

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Solution

The fourth proportional to 352,448.60, 528,738.90 and 115,859.48 is: 173,810.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,448.60 : 528,738.90 = 115,859.48 : x
  2. Step 2: Convert to fraction form
    352,448.60/528,738.90 = 115,859.48/x
  3. Step 3: Cross multiply
    352,448.60x = 528,738.90 × 115,859.48
  4. Step 4: Simplify right side
    352,448.60x = 61,259,414,009.77
  5. Step 5: Solve for x
    x = 61,259,414,009.77/352,448.60
  6. Step 6: Final answer
    x = 173,810.92

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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.