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Finding the Fourth Proportional to 92,707.56, 127,939.14 and 52,420.47

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Solution

The fourth proportional to 92,707.56, 127,939.14 and 52,420.47 is: 72,341.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,707.56 : 127,939.14 = 52,420.47 : x
  2. Step 2: Convert to fraction form
    92,707.56/127,939.14 = 52,420.47/x
  3. Step 3: Cross multiply
    92,707.56x = 127,939.14 × 52,420.47
  4. Step 4: Simplify right side
    92,707.56x = 6,706,629,850.20
  5. Step 5: Solve for x
    x = 6,706,629,850.20/92,707.56
  6. Step 6: Final answer
    x = 72,341.78

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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.