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Finding the Fourth Proportional to 266,432.71, 367,665.74 and 145,572.07

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Solution

The fourth proportional to 266,432.71, 367,665.74 and 145,572.07 is: 200,883.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,432.71 : 367,665.74 = 145,572.07 : x
  2. Step 2: Convert to fraction form
    266,432.71/367,665.74 = 145,572.07/x
  3. Step 3: Cross multiply
    266,432.71x = 367,665.74 × 145,572.07
  4. Step 4: Simplify right side
    266,432.71x = 53,521,862,112.02
  5. Step 5: Solve for x
    x = 53,521,862,112.02/266,432.71
  6. Step 6: Final answer
    x = 200,883.23

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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.