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Finding the Fourth Proportional to 127,805.23, 191,649.15 and 43,531.11

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Solution

The fourth proportional to 127,805.23, 191,649.15 and 43,531.11 is: 65,276.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,805.23 : 191,649.15 = 43,531.11 : x
  2. Step 2: Convert to fraction form
    127,805.23/191,649.15 = 43,531.11/x
  3. Step 3: Cross multiply
    127,805.23x = 191,649.15 × 43,531.11
  4. Step 4: Simplify right side
    127,805.23x = 8,342,700,230.06
  5. Step 5: Solve for x
    x = 8,342,700,230.06/127,805.23
  6. Step 6: Final answer
    x = 65,276.67

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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.