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Finding the Fourth Proportional to 86,094.19, 129,154.60 and 43,951.41

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Solution

The fourth proportional to 86,094.19, 129,154.60 and 43,951.41 is: 65,933.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,094.19 : 129,154.60 = 43,951.41 : x
  2. Step 2: Convert to fraction form
    86,094.19/129,154.60 = 43,951.41/x
  3. Step 3: Cross multiply
    86,094.19x = 129,154.60 × 43,951.41
  4. Step 4: Simplify right side
    86,094.19x = 5,676,526,832.93
  5. Step 5: Solve for x
    x = 5,676,526,832.93/86,094.19
  6. Step 6: Final answer
    x = 65,933.91

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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.