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Finding the Fourth Proportional to 176,561.85, 243,656.33 and 103,967.90

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Solution

The fourth proportional to 176,561.85, 243,656.33 and 103,967.90 is: 143,476.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,561.85 : 243,656.33 = 103,967.90 : x
  2. Step 2: Convert to fraction form
    176,561.85/243,656.33 = 103,967.90/x
  3. Step 3: Cross multiply
    176,561.85x = 243,656.33 × 103,967.90
  4. Step 4: Simplify right side
    176,561.85x = 25,332,435,213.69
  5. Step 5: Solve for x
    x = 25,332,435,213.69/176,561.85
  6. Step 6: Final answer
    x = 143,476.27

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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.