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Finding the Fourth Proportional to 156,597.25, 216,104.78 and 84,977.26

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Solution

The fourth proportional to 156,597.25, 216,104.78 and 84,977.26 is: 117,268.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,597.25 : 216,104.78 = 84,977.26 : x
  2. Step 2: Convert to fraction form
    156,597.25/216,104.78 = 84,977.26/x
  3. Step 3: Cross multiply
    156,597.25x = 216,104.78 × 84,977.26
  4. Step 4: Simplify right side
    156,597.25x = 18,363,992,077.30
  5. Step 5: Solve for x
    x = 18,363,992,077.30/156,597.25
  6. Step 6: Final answer
    x = 117,268.93

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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.