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Finding the Fourth Proportional to 79,809.51, 119,731.79 and 23,653.95

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Solution

The fourth proportional to 79,809.51, 119,731.79 and 23,653.95 is: 35,486.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,809.51 : 119,731.79 = 23,653.95 : x
  2. Step 2: Convert to fraction form
    79,809.51/119,731.79 = 23,653.95/x
  3. Step 3: Cross multiply
    79,809.51x = 119,731.79 × 23,653.95
  4. Step 4: Simplify right side
    79,809.51x = 2,832,129,655.80
  5. Step 5: Solve for x
    x = 2,832,129,655.80/79,809.51
  6. Step 6: Final answer
    x = 35,486.12

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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.