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Finding the Fourth Proportional to 176,903.51, 265,109.76 and 80,605.38

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Solution

The fourth proportional to 176,903.51, 265,109.76 and 80,605.38 is: 120,796.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,903.51 : 265,109.76 = 80,605.38 : x
  2. Step 2: Convert to fraction form
    176,903.51/265,109.76 = 80,605.38/x
  3. Step 3: Cross multiply
    176,903.51x = 265,109.76 × 80,605.38
  4. Step 4: Simplify right side
    176,903.51x = 21,369,273,047.27
  5. Step 5: Solve for x
    x = 21,369,273,047.27/176,903.51
  6. Step 6: Final answer
    x = 120,796.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.