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Finding the Fourth Proportional to 343,519.54, 474,059.81 and 190,567.76

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Solution

The fourth proportional to 343,519.54, 474,059.81 and 190,567.76 is: 262,985.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,519.54 : 474,059.81 = 190,567.76 : x
  2. Step 2: Convert to fraction form
    343,519.54/474,059.81 = 190,567.76/x
  3. Step 3: Cross multiply
    343,519.54x = 474,059.81 × 190,567.76
  4. Step 4: Simplify right side
    343,519.54x = 90,340,514,203.85
  5. Step 5: Solve for x
    x = 90,340,514,203.85/343,519.54
  6. Step 6: Final answer
    x = 262,985.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.