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Finding the Fourth Proportional to 351,088.67, 484,505.87 and 189,947.18

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Solution

The fourth proportional to 351,088.67, 484,505.87 and 189,947.18 is: 262,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,088.67 : 484,505.87 = 189,947.18 : x
  2. Step 2: Convert to fraction form
    351,088.67/484,505.87 = 189,947.18/x
  3. Step 3: Cross multiply
    351,088.67x = 484,505.87 × 189,947.18
  4. Step 4: Simplify right side
    351,088.67x = 92,030,523,699.95
  5. Step 5: Solve for x
    x = 92,030,523,699.95/351,088.67
  6. Step 6: Final answer
    x = 262,129.00

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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.