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Finding the Fourth Proportional to 272,418.60, 408,491.64 and 101,582.46

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Solution

The fourth proportional to 272,418.60, 408,491.64 and 101,582.46 is: 152,322.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,418.60 : 408,491.64 = 101,582.46 : x
  2. Step 2: Convert to fraction form
    272,418.60/408,491.64 = 101,582.46/x
  3. Step 3: Cross multiply
    272,418.60x = 408,491.64 × 101,582.46
  4. Step 4: Simplify right side
    272,418.60x = 41,495,585,680.63
  5. Step 5: Solve for x
    x = 41,495,585,680.63/272,418.60
  6. Step 6: Final answer
    x = 152,322.88

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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.