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Finding the Fourth Proportional to 351,345.53, 484,856.72 and 190,200.46

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Solution

The fourth proportional to 351,345.53, 484,856.72 and 190,200.46 is: 262,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,345.53 : 484,856.72 = 190,200.46 : x
  2. Step 2: Convert to fraction form
    351,345.53/484,856.72 = 190,200.46/x
  3. Step 3: Cross multiply
    351,345.53x = 484,856.72 × 190,200.46
  4. Step 4: Simplify right side
    351,345.53x = 92,219,968,753.81
  5. Step 5: Solve for x
    x = 92,219,968,753.81/351,345.53
  6. Step 6: Final answer
    x = 262,476.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.