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Finding the Fourth Proportional to 79,571, 109,808.10 and 46,039.16

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Solution

The fourth proportional to 79,571, 109,808.10 and 46,039.16 is: 63,534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,571 : 109,808.10 = 46,039.16 : x
  2. Step 2: Convert to fraction form
    79,571/109,808.10 = 46,039.16/x
  3. Step 3: Cross multiply
    79,571x = 109,808.10 × 46,039.16
  4. Step 4: Simplify right side
    79,571x = 5,055,472,685.20
  5. Step 5: Solve for x
    x = 5,055,472,685.20/79,571
  6. Step 6: Final answer
    x = 63,534.11

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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.