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Finding the Fourth Proportional to 163,572.38, 245,358.57 and 43,629.71

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Solution

The fourth proportional to 163,572.38, 245,358.57 and 43,629.71 is: 65,444.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,572.38 : 245,358.57 = 43,629.71 : x
  2. Step 2: Convert to fraction form
    163,572.38/245,358.57 = 43,629.71/x
  3. Step 3: Cross multiply
    163,572.38x = 245,358.57 × 43,629.71
  4. Step 4: Simplify right side
    163,572.38x = 10,704,922,028.32
  5. Step 5: Solve for x
    x = 10,704,922,028.32/163,572.38
  6. Step 6: Final answer
    x = 65,444.56

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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.