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Finding the Fourth Proportional to 144,346.52, 216,644.40 and 127,531.24

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Solution

The fourth proportional to 144,346.52, 216,644.40 and 127,531.24 is: 191,406.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,346.52 : 216,644.40 = 127,531.24 : x
  2. Step 2: Convert to fraction form
    144,346.52/216,644.40 = 127,531.24/x
  3. Step 3: Cross multiply
    144,346.52x = 216,644.40 × 127,531.24
  4. Step 4: Simplify right side
    144,346.52x = 27,628,928,429.45
  5. Step 5: Solve for x
    x = 27,628,928,429.45/144,346.52
  6. Step 6: Final answer
    x = 191,406.96

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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.