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Finding the Fourth Proportional to 140,466.80, 193,862.40 and 80,059.16

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Solution

The fourth proportional to 140,466.80, 193,862.40 and 80,059.16 is: 110,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,466.80 : 193,862.40 = 80,059.16 : x
  2. Step 2: Convert to fraction form
    140,466.80/193,862.40 = 80,059.16/x
  3. Step 3: Cross multiply
    140,466.80x = 193,862.40 × 80,059.16
  4. Step 4: Simplify right side
    140,466.80x = 15,520,460,899.58
  5. Step 5: Solve for x
    x = 15,520,460,899.58/140,466.80
  6. Step 6: Final answer
    x = 110,492.02

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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.