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Finding the Fourth Proportional to 346,820.80, 519,885.60 and 159,505.60

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Solution

The fourth proportional to 346,820.80, 519,885.60 and 159,505.60 is: 239,099.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,820.80 : 519,885.60 = 159,505.60 : x
  2. Step 2: Convert to fraction form
    346,820.80/519,885.60 = 159,505.60/x
  3. Step 3: Cross multiply
    346,820.80x = 519,885.60 × 159,505.60
  4. Step 4: Simplify right side
    346,820.80x = 82,924,664,559.36
  5. Step 5: Solve for x
    x = 82,924,664,559.36/346,820.80
  6. Step 6: Final answer
    x = 239,099.46

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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.