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Finding the Fourth Proportional to 86,098.60, 118,807.92 and 47,853.61

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Solution

The fourth proportional to 86,098.60, 118,807.92 and 47,853.61 is: 66,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,098.60 : 118,807.92 = 47,853.61 : x
  2. Step 2: Convert to fraction form
    86,098.60/118,807.92 = 47,853.61/x
  3. Step 3: Cross multiply
    86,098.60x = 118,807.92 × 47,853.61
  4. Step 4: Simplify right side
    86,098.60x = 5,685,387,939.37
  5. Step 5: Solve for x
    x = 5,685,387,939.37/86,098.60
  6. Step 6: Final answer
    x = 66,033.45

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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.