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Finding the Fourth Proportional to 176,686.99, 243,918.38 and 136,310.11

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Solution

The fourth proportional to 176,686.99, 243,918.38 and 136,310.11 is: 188,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,686.99 : 243,918.38 = 136,310.11 : x
  2. Step 2: Convert to fraction form
    176,686.99/243,918.38 = 136,310.11/x
  3. Step 3: Cross multiply
    176,686.99x = 243,918.38 × 136,310.11
  4. Step 4: Simplify right side
    176,686.99x = 33,248,541,208.82
  5. Step 5: Solve for x
    x = 33,248,541,208.82/176,686.99
  6. Step 6: Final answer
    x = 188,177.64

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Why These Related Problems?

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