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Finding the Fourth Proportional to 328,873.60, 493,828.80 and 188,905.60

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Solution

The fourth proportional to 328,873.60, 493,828.80 and 188,905.60 is: 283,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,873.60 : 493,828.80 = 188,905.60 : x
  2. Step 2: Convert to fraction form
    328,873.60/493,828.80 = 188,905.60/x
  3. Step 3: Cross multiply
    328,873.60x = 493,828.80 × 188,905.60
  4. Step 4: Simplify right side
    328,873.60x = 93,287,025,761.28
  5. Step 5: Solve for x
    x = 93,287,025,761.28/328,873.60
  6. Step 6: Final answer
    x = 283,656.17

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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.