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Finding the Fourth Proportional to 219,166.80, 328,783.05 and 92,806.80

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Solution

The fourth proportional to 219,166.80, 328,783.05 and 92,806.80 is: 139,224.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,166.80 : 328,783.05 = 92,806.80 : x
  2. Step 2: Convert to fraction form
    219,166.80/328,783.05 = 92,806.80/x
  3. Step 3: Cross multiply
    219,166.80x = 328,783.05 × 92,806.80
  4. Step 4: Simplify right side
    219,166.80x = 30,513,302,764.74
  5. Step 5: Solve for x
    x = 30,513,302,764.74/219,166.80
  6. Step 6: Final answer
    x = 139,224.11

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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.