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Finding the Fourth Proportional to 266,751.48, 368,103.40 and 145,869.36

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Solution

The fourth proportional to 266,751.48, 368,103.40 and 145,869.36 is: 201,292.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,751.48 : 368,103.40 = 145,869.36 : x
  2. Step 2: Convert to fraction form
    266,751.48/368,103.40 = 145,869.36/x
  3. Step 3: Cross multiply
    266,751.48x = 368,103.40 × 145,869.36
  4. Step 4: Simplify right side
    266,751.48x = 53,695,007,371.82
  5. Step 5: Solve for x
    x = 53,695,007,371.82/266,751.48
  6. Step 6: Final answer
    x = 201,292.26

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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.