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Finding the Fourth Proportional to 356,526.53, 492,006.61 and 195,385.30

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Solution

The fourth proportional to 356,526.53, 492,006.61 and 195,385.30 is: 269,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,526.53 : 492,006.61 = 195,385.30 : x
  2. Step 2: Convert to fraction form
    356,526.53/492,006.61 = 195,385.30/x
  3. Step 3: Cross multiply
    356,526.53x = 492,006.61 × 195,385.30
  4. Step 4: Simplify right side
    356,526.53x = 96,130,858,111.05
  5. Step 5: Solve for x
    x = 96,130,858,111.05/356,526.53
  6. Step 6: Final answer
    x = 269,631.71

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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.