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Finding the Fourth Proportional to 265,136.13, 397,705.02 and 65,456.54

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Solution

The fourth proportional to 265,136.13, 397,705.02 and 65,456.54 is: 98,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,136.13 : 397,705.02 = 65,456.54 : x
  2. Step 2: Convert to fraction form
    265,136.13/397,705.02 = 65,456.54/x
  3. Step 3: Cross multiply
    265,136.13x = 397,705.02 × 65,456.54
  4. Step 4: Simplify right side
    265,136.13x = 26,032,393,807.24
  5. Step 5: Solve for x
    x = 26,032,393,807.24/265,136.13
  6. Step 6: Final answer
    x = 98,185.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.