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Finding the Fourth Proportional to 260,411.52, 390,488.04 and 82,895.44

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Solution

The fourth proportional to 260,411.52, 390,488.04 and 82,895.44 is: 124,302.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,411.52 : 390,488.04 = 82,895.44 : x
  2. Step 2: Convert to fraction form
    260,411.52/390,488.04 = 82,895.44/x
  3. Step 3: Cross multiply
    260,411.52x = 390,488.04 × 82,895.44
  4. Step 4: Simplify right side
    260,411.52x = 32,369,677,890.54
  5. Step 5: Solve for x
    x = 32,369,677,890.54/260,411.52
  6. Step 6: Final answer
    x = 124,302.02

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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.