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Finding the Fourth Proportional to 144,573.21, 216,933.95 and 69,757.16

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Solution

The fourth proportional to 144,573.21, 216,933.95 and 69,757.16 is: 104,671.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,573.21 : 216,933.95 = 69,757.16 : x
  2. Step 2: Convert to fraction form
    144,573.21/216,933.95 = 69,757.16/x
  3. Step 3: Cross multiply
    144,573.21x = 216,933.95 × 69,757.16
  4. Step 4: Simplify right side
    144,573.21x = 15,132,696,259.58
  5. Step 5: Solve for x
    x = 15,132,696,259.58/144,573.21
  6. Step 6: Final answer
    x = 104,671.51

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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.