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Finding the Fourth Proportional to 109,666.80, 164,500.20 and 63,010.80

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Solution

The fourth proportional to 109,666.80, 164,500.20 and 63,010.80 is: 94,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,666.80 : 164,500.20 = 63,010.80 : x
  2. Step 2: Convert to fraction form
    109,666.80/164,500.20 = 63,010.80/x
  3. Step 3: Cross multiply
    109,666.80x = 164,500.20 × 63,010.80
  4. Step 4: Simplify right side
    109,666.80x = 10,365,289,202.16
  5. Step 5: Solve for x
    x = 10,365,289,202.16/109,666.80
  6. Step 6: Final answer
    x = 94,516.20

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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.