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Finding the Fourth Proportional to 266,881.74, 400,259.73 and 98,310.51

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Solution

The fourth proportional to 266,881.74, 400,259.73 and 98,310.51 is: 147,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,881.74 : 400,259.73 = 98,310.51 : x
  2. Step 2: Convert to fraction form
    266,881.74/400,259.73 = 98,310.51/x
  3. Step 3: Cross multiply
    266,881.74x = 400,259.73 × 98,310.51
  4. Step 4: Simplify right side
    266,881.74x = 39,349,738,004.43
  5. Step 5: Solve for x
    x = 39,349,738,004.43/266,881.74
  6. Step 6: Final answer
    x = 147,442.60

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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.