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Finding the Fourth Proportional to 234,611.60, 351,918.12 and 57,118.64

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Solution

The fourth proportional to 234,611.60, 351,918.12 and 57,118.64 is: 85,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,611.60 : 351,918.12 = 57,118.64 : x
  2. Step 2: Convert to fraction form
    234,611.60/351,918.12 = 57,118.64/x
  3. Step 3: Cross multiply
    234,611.60x = 351,918.12 × 57,118.64
  4. Step 4: Simplify right side
    234,611.60x = 20,101,084,405.76
  5. Step 5: Solve for x
    x = 20,101,084,405.76/234,611.60
  6. Step 6: Final answer
    x = 85,678.14

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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.