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Finding the Fourth Proportional to 249,843.92, 374,711.60 and 79,078.91

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Solution

The fourth proportional to 249,843.92, 374,711.60 and 79,078.91 is: 118,601.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,843.92 : 374,711.60 = 79,078.91 : x
  2. Step 2: Convert to fraction form
    249,843.92/374,711.60 = 79,078.91/x
  3. Step 3: Cross multiply
    249,843.92x = 374,711.60 × 79,078.91
  4. Step 4: Simplify right side
    249,843.92x = 29,631,782,623.40
  5. Step 5: Solve for x
    x = 29,631,782,623.40/249,843.92
  6. Step 6: Final answer
    x = 118,601.18

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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.