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Finding the Fourth Proportional to 86,924.65, 119,946.09 and 48,678.88

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Solution

The fourth proportional to 86,924.65, 119,946.09 and 48,678.88 is: 67,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,924.65 : 119,946.09 = 48,678.88 : x
  2. Step 2: Convert to fraction form
    86,924.65/119,946.09 = 48,678.88/x
  3. Step 3: Cross multiply
    86,924.65x = 119,946.09 × 48,678.88
  4. Step 4: Simplify right side
    86,924.65x = 5,838,841,321.58
  5. Step 5: Solve for x
    x = 5,838,841,321.58/86,924.65
  6. Step 6: Final answer
    x = 67,171.30

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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.