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Finding the Fourth Proportional to 127,776.65, 176,212.18 and 100,983.17

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Solution

The fourth proportional to 127,776.65, 176,212.18 and 100,983.17 is: 139,262.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,776.65 : 176,212.18 = 100,983.17 : x
  2. Step 2: Convert to fraction form
    127,776.65/176,212.18 = 100,983.17/x
  3. Step 3: Cross multiply
    127,776.65x = 176,212.18 × 100,983.17
  4. Step 4: Simplify right side
    127,776.65x = 17,794,463,725.89
  5. Step 5: Solve for x
    x = 17,794,463,725.89/127,776.65
  6. Step 6: Final answer
    x = 139,262.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.