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Finding the Fourth Proportional to 346,878.80, 519,972.60 and 159,563.60

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Solution

The fourth proportional to 346,878.80, 519,972.60 and 159,563.60 is: 239,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,878.80 : 519,972.60 = 159,563.60 : x
  2. Step 2: Convert to fraction form
    346,878.80/519,972.60 = 159,563.60/x
  3. Step 3: Cross multiply
    346,878.80x = 519,972.60 × 159,563.60
  4. Step 4: Simplify right side
    346,878.80x = 82,968,699,957.36
  5. Step 5: Solve for x
    x = 82,968,699,957.36/346,878.80
  6. Step 6: Final answer
    x = 239,186.42

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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.