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Finding the Fourth Proportional to 79,501.08, 109,713.51 and 43,692

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Solution

The fourth proportional to 79,501.08, 109,713.51 and 43,692 is: 60,296.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,501.08 : 109,713.51 = 43,692 : x
  2. Step 2: Convert to fraction form
    79,501.08/109,713.51 = 43,692/x
  3. Step 3: Cross multiply
    79,501.08x = 109,713.51 × 43,692
  4. Step 4: Simplify right side
    79,501.08x = 4,793,602,678.92
  5. Step 5: Solve for x
    x = 4,793,602,678.92/79,501.08
  6. Step 6: Final answer
    x = 60,296.07

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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.