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Finding the Fourth Proportional to 109,482.44, 151,086.60 and 64,161.72

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Solution

The fourth proportional to 109,482.44, 151,086.60 and 64,161.72 is: 88,543.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,482.44 : 151,086.60 = 64,161.72 : x
  2. Step 2: Convert to fraction form
    109,482.44/151,086.60 = 64,161.72/x
  3. Step 3: Cross multiply
    109,482.44x = 151,086.60 × 64,161.72
  4. Step 4: Simplify right side
    109,482.44x = 9,693,976,124.95
  5. Step 5: Solve for x
    x = 9,693,976,124.95/109,482.44
  6. Step 6: Final answer
    x = 88,543.67

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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.