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Finding the Fourth Proportional to 86,654.28, 119,590.88 and 52,654.92

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Solution

The fourth proportional to 86,654.28, 119,590.88 and 52,654.92 is: 72,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,654.28 : 119,590.88 = 52,654.92 : x
  2. Step 2: Convert to fraction form
    86,654.28/119,590.88 = 52,654.92/x
  3. Step 3: Cross multiply
    86,654.28x = 119,590.88 × 52,654.92
  4. Step 4: Simplify right side
    86,654.28x = 6,297,048,219.13
  5. Step 5: Solve for x
    x = 6,297,048,219.13/86,654.28
  6. Step 6: Final answer
    x = 72,668.63

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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.