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Finding the Fourth Proportional to 77,118.44, 106,412.13 and 45,297.59

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Solution

The fourth proportional to 77,118.44, 106,412.13 and 45,297.59 is: 62,504.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,118.44 : 106,412.13 = 45,297.59 : x
  2. Step 2: Convert to fraction form
    77,118.44/106,412.13 = 45,297.59/x
  3. Step 3: Cross multiply
    77,118.44x = 106,412.13 × 45,297.59
  4. Step 4: Simplify right side
    77,118.44x = 4,820,213,035.77
  5. Step 5: Solve for x
    x = 4,820,213,035.77/77,118.44
  6. Step 6: Final answer
    x = 62,504.03

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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.