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Finding the Fourth Proportional to 72,955.63, 109,122.40 and 44,806.51

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Solution

The fourth proportional to 72,955.63, 109,122.40 and 44,806.51 is: 67,018.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,955.63 : 109,122.40 = 44,806.51 : x
  2. Step 2: Convert to fraction form
    72,955.63/109,122.40 = 44,806.51/x
  3. Step 3: Cross multiply
    72,955.63x = 109,122.40 × 44,806.51
  4. Step 4: Simplify right side
    72,955.63x = 4,889,393,906.82
  5. Step 5: Solve for x
    x = 4,889,393,906.82/72,955.63
  6. Step 6: Final answer
    x = 67,018.73

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1.5x scale

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.