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Finding the Fourth Proportional to 343,497.60, 515,246.40 and 186,033.60

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Solution

The fourth proportional to 343,497.60, 515,246.40 and 186,033.60 is: 279,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,497.60 : 515,246.40 = 186,033.60 : x
  2. Step 2: Convert to fraction form
    343,497.60/515,246.40 = 186,033.60/x
  3. Step 3: Cross multiply
    343,497.60x = 515,246.40 × 186,033.60
  4. Step 4: Simplify right side
    343,497.60x = 95,853,142,679.04
  5. Step 5: Solve for x
    x = 95,853,142,679.04/343,497.60
  6. Step 6: Final answer
    x = 279,050.40

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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.