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Finding the Fourth Proportional to 308,428.44, 462,637.80 and 98,063.34

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Solution

The fourth proportional to 308,428.44, 462,637.80 and 98,063.34 is: 147,093.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,428.44 : 462,637.80 = 98,063.34 : x
  2. Step 2: Convert to fraction form
    308,428.44/462,637.80 = 98,063.34/x
  3. Step 3: Cross multiply
    308,428.44x = 462,637.80 × 98,063.34
  4. Step 4: Simplify right side
    308,428.44x = 45,367,807,878.25
  5. Step 5: Solve for x
    x = 45,367,807,878.25/308,428.44
  6. Step 6: Final answer
    x = 147,093.46

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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.