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Finding the Fourth Proportional to 163,871.85, 245,808.54 and 57,255.34

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Solution

The fourth proportional to 163,871.85, 245,808.54 and 57,255.34 is: 85,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,871.85 : 245,808.54 = 57,255.34 : x
  2. Step 2: Convert to fraction form
    163,871.85/245,808.54 = 57,255.34/x
  3. Step 3: Cross multiply
    163,871.85x = 245,808.54 × 57,255.34
  4. Step 4: Simplify right side
    163,871.85x = 14,073,851,532.60
  5. Step 5: Solve for x
    x = 14,073,851,532.60/163,871.85
  6. Step 6: Final answer
    x = 85,883.28

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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.