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Finding the Fourth Proportional to 176,173.80, 243,118 and 98,649.60

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Solution

The fourth proportional to 176,173.80, 243,118 and 98,649.60 is: 136,135.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,173.80 : 243,118 = 98,649.60 : x
  2. Step 2: Convert to fraction form
    176,173.80/243,118 = 98,649.60/x
  3. Step 3: Cross multiply
    176,173.80x = 243,118 × 98,649.60
  4. Step 4: Simplify right side
    176,173.80x = 23,983,493,452.80
  5. Step 5: Solve for x
    x = 23,983,493,452.80/176,173.80
  6. Step 6: Final answer
    x = 136,135.42

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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.