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Finding the Fourth Proportional to 125,626, 188,525.40 and 51,754

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Solution

The fourth proportional to 125,626, 188,525.40 and 51,754 is: 77,666.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,626 : 188,525.40 = 51,754 : x
  2. Step 2: Convert to fraction form
    125,626/188,525.40 = 51,754/x
  3. Step 3: Cross multiply
    125,626x = 188,525.40 × 51,754
  4. Step 4: Simplify right side
    125,626x = 9,756,943,551.60
  5. Step 5: Solve for x
    x = 9,756,943,551.60/125,626
  6. Step 6: Final answer
    x = 77,666.59

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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.