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Finding the Fourth Proportional to 79,997.76, 110,345.76 and 48,176.64

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Solution

The fourth proportional to 79,997.76, 110,345.76 and 48,176.64 is: 66,452.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,997.76 : 110,345.76 = 48,176.64 : x
  2. Step 2: Convert to fraction form
    79,997.76/110,345.76 = 48,176.64/x
  3. Step 3: Cross multiply
    79,997.76x = 110,345.76 × 48,176.64
  4. Step 4: Simplify right side
    79,997.76x = 5,316,087,955.05
  5. Step 5: Solve for x
    x = 5,316,087,955.05/79,997.76
  6. Step 6: Final answer
    x = 66,452.96

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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.