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Finding the Fourth Proportional to 74,443.69, 102,720.72 and 44,228.23

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Solution

The fourth proportional to 74,443.69, 102,720.72 and 44,228.23 is: 61,028.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,443.69 : 102,720.72 = 44,228.23 : x
  2. Step 2: Convert to fraction form
    74,443.69/102,720.72 = 44,228.23/x
  3. Step 3: Cross multiply
    74,443.69x = 102,720.72 × 44,228.23
  4. Step 4: Simplify right side
    74,443.69x = 4,543,155,629.93
  5. Step 5: Solve for x
    x = 4,543,155,629.93/74,443.69
  6. Step 6: Final answer
    x = 61,028.08

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1.5x scale

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.