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Finding the Fourth Proportional to 125,812.43, 188,720.77 and 37,045.74

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Solution

The fourth proportional to 125,812.43, 188,720.77 and 37,045.74 is: 55,569.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,812.43 : 188,720.77 = 37,045.74 : x
  2. Step 2: Convert to fraction form
    125,812.43/188,720.77 = 37,045.74/x
  3. Step 3: Cross multiply
    125,812.43x = 188,720.77 × 37,045.74
  4. Step 4: Simplify right side
    125,812.43x = 6,991,300,578.02
  5. Step 5: Solve for x
    x = 6,991,300,578.02/125,812.43
  6. Step 6: Final answer
    x = 55,569.24

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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.