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Finding the Fourth Proportional to 86,097.60, 118,807.92 and 48,364.80

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Solution

The fourth proportional to 86,097.60, 118,807.92 and 48,364.80 is: 66,739.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,097.60 : 118,807.92 = 48,364.80 : x
  2. Step 2: Convert to fraction form
    86,097.60/118,807.92 = 48,364.80/x
  3. Step 3: Cross multiply
    86,097.60x = 118,807.92 × 48,364.80
  4. Step 4: Simplify right side
    86,097.60x = 5,746,121,289.22
  5. Step 5: Solve for x
    x = 5,746,121,289.22/86,097.60
  6. Step 6: Final answer
    x = 66,739.62

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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.