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Finding the Fourth Proportional to 308,501.62, 462,705.49 and 118,934.32

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Solution

The fourth proportional to 308,501.62, 462,705.49 and 118,934.32 is: 178,383.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,501.62 : 462,705.49 = 118,934.32 : x
  2. Step 2: Convert to fraction form
    308,501.62/462,705.49 = 118,934.32/x
  3. Step 3: Cross multiply
    308,501.62x = 462,705.49 × 118,934.32
  4. Step 4: Simplify right side
    308,501.62x = 55,031,562,813.42
  5. Step 5: Solve for x
    x = 55,031,562,813.42/308,501.62
  6. Step 6: Final answer
    x = 178,383.38

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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.