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Finding the Fourth Proportional to 362,215.60, 543,320.70 and 109,495.60

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Solution

The fourth proportional to 362,215.60, 543,320.70 and 109,495.60 is: 164,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,215.60 : 543,320.70 = 109,495.60 : x
  2. Step 2: Convert to fraction form
    362,215.60/543,320.70 = 109,495.60/x
  3. Step 3: Cross multiply
    362,215.60x = 543,320.70 × 109,495.60
  4. Step 4: Simplify right side
    362,215.60x = 59,491,226,038.92
  5. Step 5: Solve for x
    x = 59,491,226,038.92/362,215.60
  6. Step 6: Final answer
    x = 164,242.58

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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.