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Finding the Fourth Proportional to 269,515.52, 404,271.60 and 69,835.40

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Solution

The fourth proportional to 269,515.52, 404,271.60 and 69,835.40 is: 104,752.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,515.52 : 404,271.60 = 69,835.40 : x
  2. Step 2: Convert to fraction form
    269,515.52/404,271.60 = 69,835.40/x
  3. Step 3: Cross multiply
    269,515.52x = 404,271.60 × 69,835.40
  4. Step 4: Simplify right side
    269,515.52x = 28,232,468,894.64
  5. Step 5: Solve for x
    x = 28,232,468,894.64/269,515.52
  6. Step 6: Final answer
    x = 104,752.66

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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.