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Finding the Fourth Proportional to 79,492.47, 109,653.93 and 49,632.63

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Solution

The fourth proportional to 79,492.47, 109,653.93 and 49,632.63 is: 68,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,492.47 : 109,653.93 = 49,632.63 : x
  2. Step 2: Convert to fraction form
    79,492.47/109,653.93 = 49,632.63/x
  3. Step 3: Cross multiply
    79,492.47x = 109,653.93 × 49,632.63
  4. Step 4: Simplify right side
    79,492.47x = 5,442,412,935.74
  5. Step 5: Solve for x
    x = 5,442,412,935.74/79,492.47
  6. Step 6: Final answer
    x = 68,464.51

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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.