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Finding the Fourth Proportional to 176,661.90, 264,904.11 and 81,810.54

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Solution

The fourth proportional to 176,661.90, 264,904.11 and 81,810.54 is: 122,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,661.90 : 264,904.11 = 81,810.54 : x
  2. Step 2: Convert to fraction form
    176,661.90/264,904.11 = 81,810.54/x
  3. Step 3: Cross multiply
    176,661.90x = 264,904.11 × 81,810.54
  4. Step 4: Simplify right side
    176,661.90x = 21,671,948,287.32
  5. Step 5: Solve for x
    x = 21,671,948,287.32/176,661.90
  6. Step 6: Final answer
    x = 122,674.72

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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.