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Finding the Fourth Proportional to 72,484.95, 108,734.90 and 25,099.95

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Solution

The fourth proportional to 72,484.95, 108,734.90 and 25,099.95 is: 37,652.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,484.95 : 108,734.90 = 25,099.95 : x
  2. Step 2: Convert to fraction form
    72,484.95/108,734.90 = 25,099.95/x
  3. Step 3: Cross multiply
    72,484.95x = 108,734.90 × 25,099.95
  4. Step 4: Simplify right side
    72,484.95x = 2,729,240,835.51
  5. Step 5: Solve for x
    x = 2,729,240,835.51/72,484.95
  6. Step 6: Final answer
    x = 37,652.52

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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.