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Finding the Fourth Proportional to 346,048.80, 519,073.20 and 121,662.60

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Solution

The fourth proportional to 346,048.80, 519,073.20 and 121,662.60 is: 182,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,048.80 : 519,073.20 = 121,662.60 : x
  2. Step 2: Convert to fraction form
    346,048.80/519,073.20 = 121,662.60/x
  3. Step 3: Cross multiply
    346,048.80x = 519,073.20 × 121,662.60
  4. Step 4: Simplify right side
    346,048.80x = 63,151,795,102.32
  5. Step 5: Solve for x
    x = 63,151,795,102.32/346,048.80
  6. Step 6: Final answer
    x = 182,493.90

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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.