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Finding the Fourth Proportional to 236,420.70, 354,631.05 and 118,110.30

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Solution

The fourth proportional to 236,420.70, 354,631.05 and 118,110.30 is: 177,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,420.70 : 354,631.05 = 118,110.30 : x
  2. Step 2: Convert to fraction form
    236,420.70/354,631.05 = 118,110.30/x
  3. Step 3: Cross multiply
    236,420.70x = 354,631.05 × 118,110.30
  4. Step 4: Simplify right side
    236,420.70x = 41,885,579,704.82
  5. Step 5: Solve for x
    x = 41,885,579,704.82/236,420.70
  6. Step 6: Final answer
    x = 177,165.45

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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.