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Finding the Fourth Proportional to 332,985, 499,477.98 and 135,993

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Solution

The fourth proportional to 332,985, 499,477.98 and 135,993 is: 203,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,985 : 499,477.98 = 135,993 : x
  2. Step 2: Convert to fraction form
    332,985/499,477.98 = 135,993/x
  3. Step 3: Cross multiply
    332,985x = 499,477.98 × 135,993
  4. Step 4: Simplify right side
    332,985x = 67,925,508,934.14
  5. Step 5: Solve for x
    x = 67,925,508,934.14/332,985
  6. Step 6: Final answer
    x = 203,989.70

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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.