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Finding the Fourth Proportional to 219,466.80, 302,863.92 and 118,864.80

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Solution

The fourth proportional to 219,466.80, 302,863.92 and 118,864.80 is: 164,033.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,466.80 : 302,863.92 = 118,864.80 : x
  2. Step 2: Convert to fraction form
    219,466.80/302,863.92 = 118,864.80/x
  3. Step 3: Cross multiply
    219,466.80x = 302,863.92 × 118,864.80
  4. Step 4: Simplify right side
    219,466.80x = 35,999,859,278.02
  5. Step 5: Solve for x
    x = 35,999,859,278.02/219,466.80
  6. Step 6: Final answer
    x = 164,033.28

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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.