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Finding the Fourth Proportional to 113,597.40, 156,760.92 and 71,179.32

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Solution

The fourth proportional to 113,597.40, 156,760.92 and 71,179.32 is: 98,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,597.40 : 156,760.92 = 71,179.32 : x
  2. Step 2: Convert to fraction form
    113,597.40/156,760.92 = 71,179.32/x
  3. Step 3: Cross multiply
    113,597.40x = 156,760.92 × 71,179.32
  4. Step 4: Simplify right side
    113,597.40x = 11,158,135,688.17
  5. Step 5: Solve for x
    x = 11,158,135,688.17/113,597.40
  6. Step 6: Final answer
    x = 98,225.27

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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.