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Finding the Fourth Proportional to 266,817.15, 368,207.54 and 145,958.41

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Solution

The fourth proportional to 266,817.15, 368,207.54 and 145,958.41 is: 201,422.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,817.15 : 368,207.54 = 145,958.41 : x
  2. Step 2: Convert to fraction form
    266,817.15/368,207.54 = 145,958.41/x
  3. Step 3: Cross multiply
    266,817.15x = 368,207.54 × 145,958.41
  4. Step 4: Simplify right side
    266,817.15x = 53,742,987,088.41
  5. Step 5: Solve for x
    x = 53,742,987,088.41/266,817.15
  6. Step 6: Final answer
    x = 201,422.54

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1.5x scale

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.