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Finding the Fourth Proportional to 136,079.67, 187,796.35 and 75,651.32

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Solution

The fourth proportional to 136,079.67, 187,796.35 and 75,651.32 is: 104,402.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,079.67 : 187,796.35 = 75,651.32 : x
  2. Step 2: Convert to fraction form
    136,079.67/187,796.35 = 75,651.32/x
  3. Step 3: Cross multiply
    136,079.67x = 187,796.35 × 75,651.32
  4. Step 4: Simplify right side
    136,079.67x = 14,207,041,110.06
  5. Step 5: Solve for x
    x = 14,207,041,110.06/136,079.67
  6. Step 6: Final answer
    x = 104,402.38

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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.