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Finding the Fourth Proportional to 364,042.20, 546,063.30 and 153,917.40

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Solution

The fourth proportional to 364,042.20, 546,063.30 and 153,917.40 is: 230,876.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,042.20 : 546,063.30 = 153,917.40 : x
  2. Step 2: Convert to fraction form
    364,042.20/546,063.30 = 153,917.40/x
  3. Step 3: Cross multiply
    364,042.20x = 546,063.30 × 153,917.40
  4. Step 4: Simplify right side
    364,042.20x = 84,048,643,371.42
  5. Step 5: Solve for x
    x = 84,048,643,371.42/364,042.20
  6. Step 6: Final answer
    x = 230,876.10

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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.