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Finding the Third Proportional to 58,887,680 and 128,692,864

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Solution

The third proportional to 58,887,680 and 128,692,864 is: 281,244,790.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,887,680 : 128,692,864 = 128,692,864 : x
  2. Step 2: Convert to fraction form
    58,887,680/128,692,864 = 128,692,864/x
  3. Step 3: Cross multiply
    58,887,680x = 128,692,864 × 128,692,864
  4. Step 4: Simplify right side
    58,887,680x = 16,561,853,244,522,496
  5. Step 5: Solve for x
    x = 16,561,853,244,522,496/58,887,680
  6. Step 6: Final answer
    x = 281,244,790.84

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.