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Finding the Fourth Proportional to 195,779.90, 293,669.85 and 149,123.90

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Solution

The fourth proportional to 195,779.90, 293,669.85 and 149,123.90 is: 223,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,779.90 : 293,669.85 = 149,123.90 : x
  2. Step 2: Convert to fraction form
    195,779.90/293,669.85 = 149,123.90/x
  3. Step 3: Cross multiply
    195,779.90x = 293,669.85 × 149,123.90
  4. Step 4: Simplify right side
    195,779.90x = 43,793,193,344.42
  5. Step 5: Solve for x
    x = 43,793,193,344.42/195,779.90
  6. Step 6: Final answer
    x = 223,685.85

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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.