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Finding the Fourth Proportional to 352,447.60, 528,737.40 and 115,858.48

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Solution

The fourth proportional to 352,447.60, 528,737.40 and 115,858.48 is: 173,809.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,447.60 : 528,737.40 = 115,858.48 : x
  2. Step 2: Convert to fraction form
    352,447.60/528,737.40 = 115,858.48/x
  3. Step 3: Cross multiply
    352,447.60x = 528,737.40 × 115,858.48
  4. Step 4: Simplify right side
    352,447.60x = 61,258,711,483.15
  5. Step 5: Solve for x
    x = 61,258,711,483.15/352,447.60
  6. Step 6: Final answer
    x = 173,809.42

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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.