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Finding the Fourth Proportional to 125,476.10, 188,048.01 and 92,039.60

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Solution

The fourth proportional to 125,476.10, 188,048.01 and 92,039.60 is: 137,937.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,476.10 : 188,048.01 = 92,039.60 : x
  2. Step 2: Convert to fraction form
    125,476.10/188,048.01 = 92,039.60/x
  3. Step 3: Cross multiply
    125,476.10x = 188,048.01 × 92,039.60
  4. Step 4: Simplify right side
    125,476.10x = 17,307,863,621.20
  5. Step 5: Solve for x
    x = 17,307,863,621.20/125,476.10
  6. Step 6: Final answer
    x = 137,937.53

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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.