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Finding the Fourth Proportional to 219,534.80, 329,302.20 and 61,768.40

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Solution

The fourth proportional to 219,534.80, 329,302.20 and 61,768.40 is: 92,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,534.80 : 329,302.20 = 61,768.40 : x
  2. Step 2: Convert to fraction form
    219,534.80/329,302.20 = 61,768.40/x
  3. Step 3: Cross multiply
    219,534.80x = 329,302.20 × 61,768.40
  4. Step 4: Simplify right side
    219,534.80x = 20,340,470,010.48
  5. Step 5: Solve for x
    x = 20,340,470,010.48/219,534.80
  6. Step 6: Final answer
    x = 92,652.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.