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Finding the Fourth Proportional to 362,181.32, 543,368.58 and 125,523.80

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Solution

The fourth proportional to 362,181.32, 543,368.58 and 125,523.80 is: 188,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,181.32 : 543,368.58 = 125,523.80 : x
  2. Step 2: Convert to fraction form
    362,181.32/543,368.58 = 125,523.80/x
  3. Step 3: Cross multiply
    362,181.32x = 543,368.58 × 125,523.80
  4. Step 4: Simplify right side
    362,181.32x = 68,205,688,962.20
  5. Step 5: Solve for x
    x = 68,205,688,962.20/362,181.32
  6. Step 6: Final answer
    x = 188,319.18

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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.