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Finding the Fourth Proportional to 144,532.24, 216,617.64 and 69,638.32

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Solution

The fourth proportional to 144,532.24, 216,617.64 and 69,638.32 is: 104,370.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,532.24 : 216,617.64 = 69,638.32 : x
  2. Step 2: Convert to fraction form
    144,532.24/216,617.64 = 69,638.32/x
  3. Step 3: Cross multiply
    144,532.24x = 216,617.64 × 69,638.32
  4. Step 4: Simplify right side
    144,532.24x = 15,084,888,531.96
  5. Step 5: Solve for x
    x = 15,084,888,531.96/144,532.24
  6. Step 6: Final answer
    x = 104,370.41

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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.