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Finding the Fourth Proportional to 288,048.40, 432,072.60 and 101,059.90

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Solution

The fourth proportional to 288,048.40, 432,072.60 and 101,059.90 is: 151,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,048.40 : 432,072.60 = 101,059.90 : x
  2. Step 2: Convert to fraction form
    288,048.40/432,072.60 = 101,059.90/x
  3. Step 3: Cross multiply
    288,048.40x = 432,072.60 × 101,059.90
  4. Step 4: Simplify right side
    288,048.40x = 43,665,213,748.74
  5. Step 5: Solve for x
    x = 43,665,213,748.74/288,048.40
  6. Step 6: Final answer
    x = 151,589.85

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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.