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Finding the Fourth Proportional to 113,375.95, 156,674.60 and 85,032.43

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Solution

The fourth proportional to 113,375.95, 156,674.60 and 85,032.43 is: 117,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,375.95 : 156,674.60 = 85,032.43 : x
  2. Step 2: Convert to fraction form
    113,375.95/156,674.60 = 85,032.43/x
  3. Step 3: Cross multiply
    113,375.95x = 156,674.60 × 85,032.43
  4. Step 4: Simplify right side
    113,375.95x = 13,322,421,957.28
  5. Step 5: Solve for x
    x = 13,322,421,957.28/113,375.95
  6. Step 6: Final answer
    x = 117,506.60

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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.