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Finding the Fourth Proportional to 144,495.74, 216,689.85 and 49,699.32

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Solution

The fourth proportional to 144,495.74, 216,689.85 and 49,699.32 is: 74,530.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,495.74 : 216,689.85 = 49,699.32 : x
  2. Step 2: Convert to fraction form
    144,495.74/216,689.85 = 49,699.32/x
  3. Step 3: Cross multiply
    144,495.74x = 216,689.85 × 49,699.32
  4. Step 4: Simplify right side
    144,495.74x = 10,769,337,112.45
  5. Step 5: Solve for x
    x = 10,769,337,112.45/144,495.74
  6. Step 6: Final answer
    x = 74,530.48

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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.