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Finding the Fourth Proportional to 86,062.40, 129,093.60 and 48,008.60

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Solution

The fourth proportional to 86,062.40, 129,093.60 and 48,008.60 is: 72,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,062.40 : 129,093.60 = 48,008.60 : x
  2. Step 2: Convert to fraction form
    86,062.40/129,093.60 = 48,008.60/x
  3. Step 3: Cross multiply
    86,062.40x = 129,093.60 × 48,008.60
  4. Step 4: Simplify right side
    86,062.40x = 6,197,603,004.96
  5. Step 5: Solve for x
    x = 6,197,603,004.96/86,062.40
  6. Step 6: Final answer
    x = 72,012.90

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1.5x scale

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.