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Finding the Third Proportional to 86,705.44 and 155,368.13

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Solution

The third proportional to 86,705.44 and 155,368.13 is: 278,405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,705.44 : 155,368.13 = 155,368.13 : x
  2. Step 2: Convert to fraction form
    86,705.44/155,368.13 = 155,368.13/x
  3. Step 3: Cross multiply
    86,705.44x = 155,368.13 × 155,368.13
  4. Step 4: Simplify right side
    86,705.44x = 24,139,254,266.02
  5. Step 5: Solve for x
    x = 24,139,254,266.02/86,705.44
  6. Step 6: Final answer
    x = 278,405.31

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.