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Finding the Third Proportional to 127,692 and 277,776

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Solution

The third proportional to 127,692 and 277,776 is: 604,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,692 : 277,776 = 277,776 : x
  2. Step 2: Convert to fraction form
    127,692/277,776 = 277,776/x
  3. Step 3: Cross multiply
    127,692x = 277,776 × 277,776
  4. Step 4: Simplify right side
    127,692x = 77,159,506,176
  5. Step 5: Solve for x
    x = 77,159,506,176/127,692
  6. Step 6: Final answer
    x = 604,262.65

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.