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Finding the Fourth Proportional to 346,051.60, 519,077.40 and 213,773.20

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Solution

The fourth proportional to 346,051.60, 519,077.40 and 213,773.20 is: 320,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,051.60 : 519,077.40 = 213,773.20 : x
  2. Step 2: Convert to fraction form
    346,051.60/519,077.40 = 213,773.20/x
  3. Step 3: Cross multiply
    346,051.60x = 519,077.40 × 213,773.20
  4. Step 4: Simplify right side
    346,051.60x = 110,964,836,845.68
  5. Step 5: Solve for x
    x = 110,964,836,845.68/346,051.60
  6. Step 6: Final answer
    x = 320,659.80

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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.