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Finding the Fourth Proportional to 332,643.60, 499,278.60 and 174,985.20

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Solution

The fourth proportional to 332,643.60, 499,278.60 and 174,985.20 is: 262,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,643.60 : 499,278.60 = 174,985.20 : x
  2. Step 2: Convert to fraction form
    332,643.60/499,278.60 = 174,985.20/x
  3. Step 3: Cross multiply
    332,643.60x = 499,278.60 × 174,985.20
  4. Step 4: Simplify right side
    332,643.60x = 87,366,365,676.72
  5. Step 5: Solve for x
    x = 87,366,365,676.72/332,643.60
  6. Step 6: Final answer
    x = 262,642.56

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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.