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Finding the Fourth Proportional to 219,559.32, 302,992.20 and 118,957.32

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Solution

The fourth proportional to 219,559.32, 302,992.20 and 118,957.32 is: 164,161.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,559.32 : 302,992.20 = 118,957.32 : x
  2. Step 2: Convert to fraction form
    219,559.32/302,992.20 = 118,957.32/x
  3. Step 3: Cross multiply
    219,559.32x = 302,992.20 × 118,957.32
  4. Step 4: Simplify right side
    219,559.32x = 36,043,140,092.90
  5. Step 5: Solve for x
    x = 36,043,140,092.90/219,559.32
  6. Step 6: Final answer
    x = 164,161.28

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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.