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Finding the Fourth Proportional to 341,221.50, 470,885.67 and 190,318.50

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Solution

The fourth proportional to 341,221.50, 470,885.67 and 190,318.50 is: 262,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,221.50 : 470,885.67 = 190,318.50 : x
  2. Step 2: Convert to fraction form
    341,221.50/470,885.67 = 190,318.50/x
  3. Step 3: Cross multiply
    341,221.50x = 470,885.67 × 190,318.50
  4. Step 4: Simplify right side
    341,221.50x = 89,618,254,385.90
  5. Step 5: Solve for x
    x = 89,618,254,385.90/341,221.50
  6. Step 6: Final answer
    x = 262,639.53

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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.