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Finding the Fourth Proportional to 239,813.18, 330,918.60 and 132,376.28

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Solution

The fourth proportional to 239,813.18, 330,918.60 and 132,376.28 is: 182,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,813.18 : 330,918.60 = 132,376.28 : x
  2. Step 2: Convert to fraction form
    239,813.18/330,918.60 = 132,376.28/x
  3. Step 3: Cross multiply
    239,813.18x = 330,918.60 × 132,376.28
  4. Step 4: Simplify right side
    239,813.18x = 43,805,773,250.81
  5. Step 5: Solve for x
    x = 43,805,773,250.81/239,813.18
  6. Step 6: Final answer
    x = 182,666.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.