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Finding the Fourth Proportional to 176,705.28, 265,142.94 and 87,966.54

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Solution

The fourth proportional to 176,705.28, 265,142.94 and 87,966.54 is: 131,992.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,705.28 : 265,142.94 = 87,966.54 : x
  2. Step 2: Convert to fraction form
    176,705.28/265,142.94 = 87,966.54/x
  3. Step 3: Cross multiply
    176,705.28x = 265,142.94 × 87,966.54
  4. Step 4: Simplify right side
    176,705.28x = 23,323,707,037.23
  5. Step 5: Solve for x
    x = 23,323,707,037.23/176,705.28
  6. Step 6: Final answer
    x = 131,992.13

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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.