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Finding the Fourth Proportional to 234,840.40, 352,001.40 and 129,734.80

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Solution

The fourth proportional to 234,840.40, 352,001.40 and 129,734.80 is: 194,459.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,840.40 : 352,001.40 = 129,734.80 : x
  2. Step 2: Convert to fraction form
    234,840.40/352,001.40 = 129,734.80/x
  3. Step 3: Cross multiply
    234,840.40x = 352,001.40 × 129,734.80
  4. Step 4: Simplify right side
    234,840.40x = 45,666,831,228.72
  5. Step 5: Solve for x
    x = 45,666,831,228.72/234,840.40
  6. Step 6: Final answer
    x = 194,459.01

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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.