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Finding the Fourth Proportional to 356,709.72, 492,259.29 and 195,561.32

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Solution

The fourth proportional to 356,709.72, 492,259.29 and 195,561.32 is: 269,874.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,709.72 : 492,259.29 = 195,561.32 : x
  2. Step 2: Convert to fraction form
    356,709.72/492,259.29 = 195,561.32/x
  3. Step 3: Cross multiply
    356,709.72x = 492,259.29 × 195,561.32
  4. Step 4: Simplify right side
    356,709.72x = 96,266,877,209.00
  5. Step 5: Solve for x
    x = 96,266,877,209.00/356,709.72
  6. Step 6: Final answer
    x = 269,874.55

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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.