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Finding the Fourth Proportional to 72,955.53, 100,661.49 and 44,274.55

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Solution

The fourth proportional to 72,955.53, 100,661.49 and 44,274.55 is: 61,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,955.53 : 100,661.49 = 44,274.55 : x
  2. Step 2: Convert to fraction form
    72,955.53/100,661.49 = 44,274.55/x
  3. Step 3: Cross multiply
    72,955.53x = 100,661.49 × 44,274.55
  4. Step 4: Simplify right side
    72,955.53x = 4,456,742,109.17
  5. Step 5: Solve for x
    x = 4,456,742,109.17/72,955.53
  6. Step 6: Final answer
    x = 61,088.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.