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Finding the Fourth Proportional to 79,258.54, 109,192.98 and 55,347.34

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Solution

The fourth proportional to 79,258.54, 109,192.98 and 55,347.34 is: 76,250.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,258.54 : 109,192.98 = 55,347.34 : x
  2. Step 2: Convert to fraction form
    79,258.54/109,192.98 = 55,347.34/x
  3. Step 3: Cross multiply
    79,258.54x = 109,192.98 × 55,347.34
  4. Step 4: Simplify right side
    79,258.54x = 6,043,540,989.67
  5. Step 5: Solve for x
    x = 6,043,540,989.67/79,258.54
  6. Step 6: Final answer
    x = 76,250.98

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1.5x scale

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.