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Finding the Fourth Proportional to 236,419.56, 354,629.40 and 70,207.56

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Solution

The fourth proportional to 236,419.56, 354,629.40 and 70,207.56 is: 105,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,419.56 : 354,629.40 = 70,207.56 : x
  2. Step 2: Convert to fraction form
    236,419.56/354,629.40 = 70,207.56/x
  3. Step 3: Cross multiply
    236,419.56x = 354,629.40 × 70,207.56
  4. Step 4: Simplify right side
    236,419.56x = 24,897,664,878.26
  5. Step 5: Solve for x
    x = 24,897,664,878.26/236,419.56
  6. Step 6: Final answer
    x = 105,311.36

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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.