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Finding the Fourth Proportional to 189,149.69, 260,943.84 and 124,535.58

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Solution

The fourth proportional to 189,149.69, 260,943.84 and 124,535.58 is: 171,804.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,149.69 : 260,943.84 = 124,535.58 : x
  2. Step 2: Convert to fraction form
    189,149.69/260,943.84 = 124,535.58/x
  3. Step 3: Cross multiply
    189,149.69x = 260,943.84 × 124,535.58
  4. Step 4: Simplify right side
    189,149.69x = 32,496,792,461.83
  5. Step 5: Solve for x
    x = 32,496,792,461.83/189,149.69
  6. Step 6: Final answer
    x = 171,804.63

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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.