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Finding the Fourth Proportional to 272,029.10, 408,043.65 and 216,041.90

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Solution

The fourth proportional to 272,029.10, 408,043.65 and 216,041.90 is: 324,062.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,029.10 : 408,043.65 = 216,041.90 : x
  2. Step 2: Convert to fraction form
    272,029.10/408,043.65 = 216,041.90/x
  3. Step 3: Cross multiply
    272,029.10x = 408,043.65 × 216,041.90
  4. Step 4: Simplify right side
    272,029.10x = 88,154,525,428.94
  5. Step 5: Solve for x
    x = 88,154,525,428.94/272,029.10
  6. Step 6: Final answer
    x = 324,062.85

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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.