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Finding the Fourth Proportional to 176,388.72, 243,389.43 and 104,766.90

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Solution

The fourth proportional to 176,388.72, 243,389.43 and 104,766.90 is: 144,562.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,388.72 : 243,389.43 = 104,766.90 : x
  2. Step 2: Convert to fraction form
    176,388.72/243,389.43 = 104,766.90/x
  3. Step 3: Cross multiply
    176,388.72x = 243,389.43 × 104,766.90
  4. Step 4: Simplify right side
    176,388.72x = 25,499,156,073.87
  5. Step 5: Solve for x
    x = 25,499,156,073.87/176,388.72
  6. Step 6: Final answer
    x = 144,562.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.