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Finding the Fourth Proportional to 260,526.16, 390,789.04 and 73,537.66

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Solution

The fourth proportional to 260,526.16, 390,789.04 and 73,537.66 is: 110,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,526.16 : 390,789.04 = 73,537.66 : x
  2. Step 2: Convert to fraction form
    260,526.16/390,789.04 = 73,537.66/x
  3. Step 3: Cross multiply
    260,526.16x = 390,789.04 × 73,537.66
  4. Step 4: Simplify right side
    260,526.16x = 28,737,711,555.25
  5. Step 5: Solve for x
    x = 28,737,711,555.25/260,526.16
  6. Step 6: Final answer
    x = 110,306.43

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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.