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Finding the Fourth Proportional to 79,415.63, 109,593.56 and 45,881.63

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Solution

The fourth proportional to 79,415.63, 109,593.56 and 45,881.63 is: 63,316.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,415.63 : 109,593.56 = 45,881.63 : x
  2. Step 2: Convert to fraction form
    79,415.63/109,593.56 = 45,881.63/x
  3. Step 3: Cross multiply
    79,415.63x = 109,593.56 × 45,881.63
  4. Step 4: Simplify right side
    79,415.63x = 5,028,330,737.04
  5. Step 5: Solve for x
    x = 5,028,330,737.04/79,415.63
  6. Step 6: Final answer
    x = 63,316.64

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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.