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Finding the Fourth Proportional to 64,514.90, 96,668.67 and 54,146.90

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Solution

The fourth proportional to 64,514.90, 96,668.67 and 54,146.90 is: 81,133.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,514.90 : 96,668.67 = 54,146.90 : x
  2. Step 2: Convert to fraction form
    64,514.90/96,668.67 = 54,146.90/x
  3. Step 3: Cross multiply
    64,514.90x = 96,668.67 × 54,146.90
  4. Step 4: Simplify right side
    64,514.90x = 5,234,308,807.62
  5. Step 5: Solve for x
    x = 5,234,308,807.62/64,514.90
  6. Step 6: Final answer
    x = 81,133.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.