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Finding the Fourth Proportional to 346,871.80, 519,962.10 and 159,556.60

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Solution

The fourth proportional to 346,871.80, 519,962.10 and 159,556.60 is: 239,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,871.80 : 519,962.10 = 159,556.60 : x
  2. Step 2: Convert to fraction form
    346,871.80/519,962.10 = 159,556.60/x
  3. Step 3: Cross multiply
    346,871.80x = 519,962.10 × 159,556.60
  4. Step 4: Simplify right side
    346,871.80x = 82,963,384,804.86
  5. Step 5: Solve for x
    x = 82,963,384,804.86/346,871.80
  6. Step 6: Final answer
    x = 239,175.93

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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.