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Finding the Fourth Proportional to 292,790.70, 439,198.20 and 93,105.45

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Solution

The fourth proportional to 292,790.70, 439,198.20 and 93,105.45 is: 139,662.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,790.70 : 439,198.20 = 93,105.45 : x
  2. Step 2: Convert to fraction form
    292,790.70/439,198.20 = 93,105.45/x
  3. Step 3: Cross multiply
    292,790.70x = 439,198.20 × 93,105.45
  4. Step 4: Simplify right side
    292,790.70x = 40,891,746,050.19
  5. Step 5: Solve for x
    x = 40,891,746,050.19/292,790.70
  6. Step 6: Final answer
    x = 139,662.04

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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.