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Finding the Fourth Proportional to 176,638.65, 264,569.17 and 156,939.45

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Solution

The fourth proportional to 176,638.65, 264,569.17 and 156,939.45 is: 235,063.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,638.65 : 264,569.17 = 156,939.45 : x
  2. Step 2: Convert to fraction form
    176,638.65/264,569.17 = 156,939.45/x
  3. Step 3: Cross multiply
    176,638.65x = 264,569.17 × 156,939.45
  4. Step 4: Simplify right side
    176,638.65x = 41,521,340,026.76
  5. Step 5: Solve for x
    x = 41,521,340,026.76/176,638.65
  6. Step 6: Final answer
    x = 235,063.73

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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.