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Finding the Fourth Proportional to 162,938.70, 244,116.45 and 139,610.70

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Solution

The fourth proportional to 162,938.70, 244,116.45 and 139,610.70 is: 209,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,938.70 : 244,116.45 = 139,610.70 : x
  2. Step 2: Convert to fraction form
    162,938.70/244,116.45 = 139,610.70/x
  3. Step 3: Cross multiply
    162,938.70x = 244,116.45 × 139,610.70
  4. Step 4: Simplify right side
    162,938.70x = 34,081,268,466.02
  5. Step 5: Solve for x
    x = 34,081,268,466.02/162,938.70
  6. Step 6: Final answer
    x = 209,166.20

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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.