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Finding the Fourth Proportional to 186,702.49, 279,893.31 and 68,349.34

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Solution

The fourth proportional to 186,702.49, 279,893.31 and 68,349.34 is: 102,465.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,702.49 : 279,893.31 = 68,349.34 : x
  2. Step 2: Convert to fraction form
    186,702.49/279,893.31 = 68,349.34/x
  3. Step 3: Cross multiply
    186,702.49x = 279,893.31 × 68,349.34
  4. Step 4: Simplify right side
    186,702.49x = 19,130,523,008.92
  5. Step 5: Solve for x
    x = 19,130,523,008.92/186,702.49
  6. Step 6: Final answer
    x = 102,465.28

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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.