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Finding the Fourth Proportional to 86,843.28, 119,844.08 and 49,124.80

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Solution

The fourth proportional to 86,843.28, 119,844.08 and 49,124.80 is: 67,792.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,843.28 : 119,844.08 = 49,124.80 : x
  2. Step 2: Convert to fraction form
    86,843.28/119,844.08 = 49,124.80/x
  3. Step 3: Cross multiply
    86,843.28x = 119,844.08 × 49,124.80
  4. Step 4: Simplify right side
    86,843.28x = 5,887,316,461.18
  5. Step 5: Solve for x
    x = 5,887,316,461.18/86,843.28
  6. Step 6: Final answer
    x = 67,792.42

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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.