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Finding the Fourth Proportional to 167,411.20, 251,116.80 and 104,425.60

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Solution

The fourth proportional to 167,411.20, 251,116.80 and 104,425.60 is: 156,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,411.20 : 251,116.80 = 104,425.60 : x
  2. Step 2: Convert to fraction form
    167,411.20/251,116.80 = 104,425.60/x
  3. Step 3: Cross multiply
    167,411.20x = 251,116.80 × 104,425.60
  4. Step 4: Simplify right side
    167,411.20x = 26,223,022,510.08
  5. Step 5: Solve for x
    x = 26,223,022,510.08/167,411.20
  6. Step 6: Final answer
    x = 156,638.40

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1.5x scale

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.