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Finding the Fourth Proportional to 75,647.76, 104,378.08 and 43,814.76

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Solution

The fourth proportional to 75,647.76, 104,378.08 and 43,814.76 is: 60,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,647.76 : 104,378.08 = 43,814.76 : x
  2. Step 2: Convert to fraction form
    75,647.76/104,378.08 = 43,814.76/x
  3. Step 3: Cross multiply
    75,647.76x = 104,378.08 × 43,814.76
  4. Step 4: Simplify right side
    75,647.76x = 4,573,300,524.46
  5. Step 5: Solve for x
    x = 4,573,300,524.46/75,647.76
  6. Step 6: Final answer
    x = 60,455.20

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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.