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Finding the Fourth Proportional to 113,597.60, 156,765.29 and 65,195.66

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Solution

The fourth proportional to 113,597.60, 156,765.29 and 65,195.66 is: 89,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,597.60 : 156,765.29 = 65,195.66 : x
  2. Step 2: Convert to fraction form
    113,597.60/156,765.29 = 65,195.66/x
  3. Step 3: Cross multiply
    113,597.60x = 156,765.29 × 65,195.66
  4. Step 4: Simplify right side
    113,597.60x = 10,220,416,546.64
  5. Step 5: Solve for x
    x = 10,220,416,546.64/113,597.60
  6. Step 6: Final answer
    x = 89,970.36

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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.