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Finding the Fourth Proportional to 79,095.38, 109,142.06 and 47,258.06

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Solution

The fourth proportional to 79,095.38, 109,142.06 and 47,258.06 is: 65,210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,095.38 : 109,142.06 = 47,258.06 : x
  2. Step 2: Convert to fraction form
    79,095.38/109,142.06 = 47,258.06/x
  3. Step 3: Cross multiply
    79,095.38x = 109,142.06 × 47,258.06
  4. Step 4: Simplify right side
    79,095.38x = 5,157,842,020.00
  5. Step 5: Solve for x
    x = 5,157,842,020.00/79,095.38
  6. Step 6: Final answer
    x = 65,210.41

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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.