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Finding the Fourth Proportional to 176,617.40, 264,537.30 and 156,918.20

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Solution

The fourth proportional to 176,617.40, 264,537.30 and 156,918.20 is: 235,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,617.40 : 264,537.30 = 156,918.20 : x
  2. Step 2: Convert to fraction form
    176,617.40/264,537.30 = 156,918.20/x
  3. Step 3: Cross multiply
    176,617.40x = 264,537.30 × 156,918.20
  4. Step 4: Simplify right side
    176,617.40x = 41,510,716,948.86
  5. Step 5: Solve for x
    x = 41,510,716,948.86/176,617.40
  6. Step 6: Final answer
    x = 235,031.87

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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.