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Finding the Fourth Proportional to 125,653.30, 188,477.35 and 41,418.52

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Solution

The fourth proportional to 125,653.30, 188,477.35 and 41,418.52 is: 62,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,653.30 : 188,477.35 = 41,418.52 : x
  2. Step 2: Convert to fraction form
    125,653.30/188,477.35 = 41,418.52/x
  3. Step 3: Cross multiply
    125,653.30x = 188,477.35 × 41,418.52
  4. Step 4: Simplify right side
    125,653.30x = 7,806,451,741.04
  5. Step 5: Solve for x
    x = 7,806,451,741.04/125,653.30
  6. Step 6: Final answer
    x = 62,126.92

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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.