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Finding the Fourth Proportional to 72,095.33, 108,143.00 and 47,156.35

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Solution

The fourth proportional to 72,095.33, 108,143.00 and 47,156.35 is: 70,734.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,095.33 : 108,143.00 = 47,156.35 : x
  2. Step 2: Convert to fraction form
    72,095.33/108,143.00 = 47,156.35/x
  3. Step 3: Cross multiply
    72,095.33x = 108,143.00 × 47,156.35
  4. Step 4: Simplify right side
    72,095.33x = 5,099,629,461.74
  5. Step 5: Solve for x
    x = 5,099,629,461.74/72,095.33
  6. Step 6: Final answer
    x = 70,734.53

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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.