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Finding the Fourth Proportional to 410,740.40, 616,110.60 and 115,252.40

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Solution

The fourth proportional to 410,740.40, 616,110.60 and 115,252.40 is: 172,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,740.40 : 616,110.60 = 115,252.40 : x
  2. Step 2: Convert to fraction form
    410,740.40/616,110.60 = 115,252.40/x
  3. Step 3: Cross multiply
    410,740.40x = 616,110.60 × 115,252.40
  4. Step 4: Simplify right side
    410,740.40x = 71,008,225,315.44
  5. Step 5: Solve for x
    x = 71,008,225,315.44/410,740.40
  6. Step 6: Final answer
    x = 172,878.60

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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.