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Finding the Fourth Proportional to 144,907.72, 217,386.66 and 48,835.72

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Solution

The fourth proportional to 144,907.72, 217,386.66 and 48,835.72 is: 73,262.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,907.72 : 217,386.66 = 48,835.72 : x
  2. Step 2: Convert to fraction form
    144,907.72/217,386.66 = 48,835.72/x
  3. Step 3: Cross multiply
    144,907.72x = 217,386.66 × 48,835.72
  4. Step 4: Simplify right side
    144,907.72x = 10,616,234,059.50
  5. Step 5: Solve for x
    x = 10,616,234,059.50/144,907.72
  6. Step 6: Final answer
    x = 73,262.03

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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.