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Finding the Fourth Proportional to 79,845.70, 119,790.42 and 63,261.22

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Solution

The fourth proportional to 79,845.70, 119,790.42 and 63,261.22 is: 94,909.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,845.70 : 119,790.42 = 63,261.22 : x
  2. Step 2: Convert to fraction form
    79,845.70/119,790.42 = 63,261.22/x
  3. Step 3: Cross multiply
    79,845.70x = 119,790.42 × 63,261.22
  4. Step 4: Simplify right side
    79,845.70x = 7,578,088,113.51
  5. Step 5: Solve for x
    x = 7,578,088,113.51/79,845.70
  6. Step 6: Final answer
    x = 94,909.16

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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.