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Finding the Fourth Proportional to 176,443.01, 264,629.54 and 86,447.21

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Solution

The fourth proportional to 176,443.01, 264,629.54 and 86,447.21 is: 129,653.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,443.01 : 264,629.54 = 86,447.21 : x
  2. Step 2: Convert to fraction form
    176,443.01/264,629.54 = 86,447.21/x
  3. Step 3: Cross multiply
    176,443.01x = 264,629.54 × 86,447.21
  4. Step 4: Simplify right side
    176,443.01x = 22,876,484,984.35
  5. Step 5: Solve for x
    x = 22,876,484,984.35/176,443.01
  6. Step 6: Final answer
    x = 129,653.68

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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.