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Finding the Fourth Proportional to 156,955.62, 216,607.62 and 85,334.11

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Solution

The fourth proportional to 156,955.62, 216,607.62 and 85,334.11 is: 117,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,955.62 : 216,607.62 = 85,334.11 : x
  2. Step 2: Convert to fraction form
    156,955.62/216,607.62 = 85,334.11/x
  3. Step 3: Cross multiply
    156,955.62x = 216,607.62 × 85,334.11
  4. Step 4: Simplify right side
    156,955.62x = 18,484,017,770.40
  5. Step 5: Solve for x
    x = 18,484,017,770.40/156,955.62
  6. Step 6: Final answer
    x = 117,765.88

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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.