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Finding the Fourth Proportional to 346,449.60, 519,668.73 and 109,791.90

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Solution

The fourth proportional to 346,449.60, 519,668.73 and 109,791.90 is: 164,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,449.60 : 519,668.73 = 109,791.90 : x
  2. Step 2: Convert to fraction form
    346,449.60/519,668.73 = 109,791.90/x
  3. Step 3: Cross multiply
    346,449.60x = 519,668.73 × 109,791.90
  4. Step 4: Simplify right side
    346,449.60x = 57,055,417,237.29
  5. Step 5: Solve for x
    x = 57,055,417,237.29/346,449.60
  6. Step 6: Final answer
    x = 164,686.05

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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.