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Finding the Fourth Proportional to 186,702.32, 278,862.96 and 168,905.44

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Solution

The fourth proportional to 186,702.32, 278,862.96 and 168,905.44 is: 252,281.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,702.32 : 278,862.96 = 168,905.44 : x
  2. Step 2: Convert to fraction form
    186,702.32/278,862.96 = 168,905.44/x
  3. Step 3: Cross multiply
    186,702.32x = 278,862.96 × 168,905.44
  4. Step 4: Simplify right side
    186,702.32x = 47,101,470,958.50
  5. Step 5: Solve for x
    x = 47,101,470,958.50/186,702.32
  6. Step 6: Final answer
    x = 252,281.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.