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Finding the Fourth Proportional to 322,005.40, 482,619.30 and 164,152.60

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Solution

The fourth proportional to 322,005.40, 482,619.30 and 164,152.60 is: 246,030.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,005.40 : 482,619.30 = 164,152.60 : x
  2. Step 2: Convert to fraction form
    322,005.40/482,619.30 = 164,152.60/x
  3. Step 3: Cross multiply
    322,005.40x = 482,619.30 × 164,152.60
  4. Step 4: Simplify right side
    322,005.40x = 79,223,212,905.18
  5. Step 5: Solve for x
    x = 79,223,212,905.18/322,005.40
  6. Step 6: Final answer
    x = 246,030.70

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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.