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Finding the Fourth Proportional to 55,173, 76,115.10 and 43,188.24

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Solution

The fourth proportional to 55,173, 76,115.10 and 43,188.24 is: 59,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,173 : 76,115.10 = 43,188.24 : x
  2. Step 2: Convert to fraction form
    55,173/76,115.10 = 43,188.24/x
  3. Step 3: Cross multiply
    55,173x = 76,115.10 × 43,188.24
  4. Step 4: Simplify right side
    55,173x = 3,287,277,206.42
  5. Step 5: Solve for x
    x = 3,287,277,206.42/55,173
  6. Step 6: Final answer
    x = 59,581.27

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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.