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Finding the Fourth Proportional to 66,514.80, 99,772.20 and 63,234.30

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Solution

The fourth proportional to 66,514.80, 99,772.20 and 63,234.30 is: 94,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,514.80 : 99,772.20 = 63,234.30 : x
  2. Step 2: Convert to fraction form
    66,514.80/99,772.20 = 63,234.30/x
  3. Step 3: Cross multiply
    66,514.80x = 99,772.20 × 63,234.30
  4. Step 4: Simplify right side
    66,514.80x = 6,309,025,226.46
  5. Step 5: Solve for x
    x = 6,309,025,226.46/66,514.80
  6. Step 6: Final answer
    x = 94,851.45

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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.