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Finding the Fourth Proportional to 176,382.05, 264,663.54 and 86,423.04

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Solution

The fourth proportional to 176,382.05, 264,663.54 and 86,423.04 is: 129,678.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,382.05 : 264,663.54 = 86,423.04 : x
  2. Step 2: Convert to fraction form
    176,382.05/264,663.54 = 86,423.04/x
  3. Step 3: Cross multiply
    176,382.05x = 264,663.54 × 86,423.04
  4. Step 4: Simplify right side
    176,382.05x = 22,873,027,703.96
  5. Step 5: Solve for x
    x = 22,873,027,703.96/176,382.05
  6. Step 6: Final answer
    x = 129,678.89

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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.