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Finding the Third Proportional to 64,886.06 and 139,471.88

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Solution

The third proportional to 64,886.06 and 139,471.88 is: 299,793.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,886.06 : 139,471.88 = 139,471.88 : x
  2. Step 2: Convert to fraction form
    64,886.06/139,471.88 = 139,471.88/x
  3. Step 3: Cross multiply
    64,886.06x = 139,471.88 × 139,471.88
  4. Step 4: Simplify right side
    64,886.06x = 19,452,403,916.02
  5. Step 5: Solve for x
    x = 19,452,403,916.02/64,886.06
  6. Step 6: Final answer
    x = 299,793.26

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.