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Finding the Fourth Proportional to 266,418.96, 367,646.76 and 145,558.32

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Solution

The fourth proportional to 266,418.96, 367,646.76 and 145,558.32 is: 200,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,418.96 : 367,646.76 = 145,558.32 : x
  2. Step 2: Convert to fraction form
    266,418.96/367,646.76 = 145,558.32/x
  3. Step 3: Cross multiply
    266,418.96x = 367,646.76 × 145,558.32
  4. Step 4: Simplify right side
    266,418.96x = 53,514,044,739.04
  5. Step 5: Solve for x
    x = 53,514,044,739.04/266,418.96
  6. Step 6: Final answer
    x = 200,864.25

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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.