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Finding the Fourth Proportional to 356,862.22, 492,476.16 and 195,715.87

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Solution

The fourth proportional to 356,862.22, 492,476.16 and 195,715.87 is: 270,091.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,862.22 : 492,476.16 = 195,715.87 : x
  2. Step 2: Convert to fraction form
    356,862.22/492,476.16 = 195,715.87/x
  3. Step 3: Cross multiply
    356,862.22x = 492,476.16 × 195,715.87
  4. Step 4: Simplify right side
    356,862.22x = 96,385,400,108.66
  5. Step 5: Solve for x
    x = 96,385,400,108.66/356,862.22
  6. Step 6: Final answer
    x = 270,091.35

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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.