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Finding the Fourth Proportional to 144,495.96, 216,651.62 and 69,466.82

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Solution

The fourth proportional to 144,495.96, 216,651.62 and 69,466.82 is: 104,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,495.96 : 216,651.62 = 69,466.82 : x
  2. Step 2: Convert to fraction form
    144,495.96/216,651.62 = 69,466.82/x
  3. Step 3: Cross multiply
    144,495.96x = 216,651.62 × 69,466.82
  4. Step 4: Simplify right side
    144,495.96x = 15,050,097,658.66
  5. Step 5: Solve for x
    x = 15,050,097,658.66/144,495.96
  6. Step 6: Final answer
    x = 104,155.84

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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.