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Finding the Fourth Proportional to 53,164.60, 79,865.70 and 44,416.60

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Solution

The fourth proportional to 53,164.60, 79,865.70 and 44,416.60 is: 66,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,164.60 : 79,865.70 = 44,416.60 : x
  2. Step 2: Convert to fraction form
    53,164.60/79,865.70 = 44,416.60/x
  3. Step 3: Cross multiply
    53,164.60x = 79,865.70 × 44,416.60
  4. Step 4: Simplify right side
    53,164.60x = 3,547,362,850.62
  5. Step 5: Solve for x
    x = 3,547,362,850.62/53,164.60
  6. Step 6: Final answer
    x = 66,724.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.