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Finding the Fourth Proportional to 266,570.83, 367,867.71 and 145,712.60

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Solution

The fourth proportional to 266,570.83, 367,867.71 and 145,712.60 is: 201,083.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,570.83 : 367,867.71 = 145,712.60 : x
  2. Step 2: Convert to fraction form
    266,570.83/367,867.71 = 145,712.60/x
  3. Step 3: Cross multiply
    266,570.83x = 367,867.71 × 145,712.60
  4. Step 4: Simplify right side
    266,570.83x = 53,602,960,480.15
  5. Step 5: Solve for x
    x = 53,602,960,480.15/266,570.83
  6. Step 6: Final answer
    x = 201,083.37

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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.