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Finding the Fourth Proportional to 156,534.84, 216,016.41 and 84,914.25

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Solution

The fourth proportional to 156,534.84, 216,016.41 and 84,914.25 is: 117,180.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,534.84 : 216,016.41 = 84,914.25 : x
  2. Step 2: Convert to fraction form
    156,534.84/216,016.41 = 84,914.25/x
  3. Step 3: Cross multiply
    156,534.84x = 216,016.41 × 84,914.25
  4. Step 4: Simplify right side
    156,534.84x = 18,342,871,442.84
  5. Step 5: Solve for x
    x = 18,342,871,442.84/156,534.84
  6. Step 6: Final answer
    x = 117,180.76

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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.