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Finding the Fourth Proportional to 125,412.60, 188,426.10 and 94,308.60

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Solution

The fourth proportional to 125,412.60, 188,426.10 and 94,308.60 is: 141,693.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,412.60 : 188,426.10 = 94,308.60 : x
  2. Step 2: Convert to fraction form
    125,412.60/188,426.10 = 94,308.60/x
  3. Step 3: Cross multiply
    125,412.60x = 188,426.10 × 94,308.60
  4. Step 4: Simplify right side
    125,412.60x = 17,770,201,694.46
  5. Step 5: Solve for x
    x = 17,770,201,694.46/125,412.60
  6. Step 6: Final answer
    x = 141,693.91

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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.