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Finding the Third Proportional to 55,153,246 and 121,247,324

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Solution

The third proportional to 55,153,246 and 121,247,324 is: 266,546,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,153,246 : 121,247,324 = 121,247,324 : x
  2. Step 2: Convert to fraction form
    55,153,246/121,247,324 = 121,247,324/x
  3. Step 3: Cross multiply
    55,153,246x = 121,247,324 × 121,247,324
  4. Step 4: Simplify right side
    55,153,246x = 14,700,913,577,160,976
  5. Step 5: Solve for x
    x = 14,700,913,577,160,976/55,153,246
  6. Step 6: Final answer
    x = 266,546,661.23

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.