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Finding the Fourth Proportional to 266,347.69, 367,570.78 and 153,170.44

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Solution

The fourth proportional to 266,347.69, 367,570.78 and 153,170.44 is: 211,381.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,347.69 : 367,570.78 = 153,170.44 : x
  2. Step 2: Convert to fraction form
    266,347.69/367,570.78 = 153,170.44/x
  3. Step 3: Cross multiply
    266,347.69x = 367,570.78 × 153,170.44
  4. Step 4: Simplify right side
    266,347.69x = 56,300,976,801.89
  5. Step 5: Solve for x
    x = 56,300,976,801.89/266,347.69
  6. Step 6: Final answer
    x = 211,381.51

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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.