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Finding the Fourth Proportional to 346,433.20, 519,390.60 and 188,839.60

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Solution

The fourth proportional to 346,433.20, 519,390.60 and 188,839.60 is: 283,118.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,433.20 : 519,390.60 = 188,839.60 : x
  2. Step 2: Convert to fraction form
    346,433.20/519,390.60 = 188,839.60/x
  3. Step 3: Cross multiply
    346,433.20x = 519,390.60 × 188,839.60
  4. Step 4: Simplify right side
    346,433.20x = 98,081,513,147.76
  5. Step 5: Solve for x
    x = 98,081,513,147.76/346,433.20
  6. Step 6: Final answer
    x = 283,118.11

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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.