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Finding the Fourth Proportional to 125,970.88, 188,955.15 and 51,073.23

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Solution

The fourth proportional to 125,970.88, 188,955.15 and 51,073.23 is: 76,609.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,970.88 : 188,955.15 = 51,073.23 : x
  2. Step 2: Convert to fraction form
    125,970.88/188,955.15 = 51,073.23/x
  3. Step 3: Cross multiply
    125,970.88x = 188,955.15 × 51,073.23
  4. Step 4: Simplify right side
    125,970.88x = 9,650,549,835.63
  5. Step 5: Solve for x
    x = 9,650,549,835.63/125,970.88
  6. Step 6: Final answer
    x = 76,609.37

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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.