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Finding the Fourth Proportional to 112,042.40, 168,093.30 and 48,835.40

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Solution

The fourth proportional to 112,042.40, 168,093.30 and 48,835.40 is: 73,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,042.40 : 168,093.30 = 48,835.40 : x
  2. Step 2: Convert to fraction form
    112,042.40/168,093.30 = 48,835.40/x
  3. Step 3: Cross multiply
    112,042.40x = 168,093.30 × 48,835.40
  4. Step 4: Simplify right side
    112,042.40x = 8,208,903,542.82
  5. Step 5: Solve for x
    x = 8,208,903,542.82/112,042.40
  6. Step 6: Final answer
    x = 73,266.05

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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.