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Finding the Fourth Proportional to 125,937.40, 188,733.30 and 102,609.40

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Solution

The fourth proportional to 125,937.40, 188,733.30 and 102,609.40 is: 153,773.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,937.40 : 188,733.30 = 102,609.40 : x
  2. Step 2: Convert to fraction form
    125,937.40/188,733.30 = 102,609.40/x
  3. Step 3: Cross multiply
    125,937.40x = 188,733.30 × 102,609.40
  4. Step 4: Simplify right side
    125,937.40x = 19,365,810,673.02
  5. Step 5: Solve for x
    x = 19,365,810,673.02/125,937.40
  6. Step 6: Final answer
    x = 153,773.31

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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.