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Finding the Fourth Proportional to 66,106.70, 99,305.85 and 63,628.10

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Solution

The fourth proportional to 66,106.70, 99,305.85 and 63,628.10 is: 95,582.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,106.70 : 99,305.85 = 63,628.10 : x
  2. Step 2: Convert to fraction form
    66,106.70/99,305.85 = 63,628.10/x
  3. Step 3: Cross multiply
    66,106.70x = 99,305.85 × 63,628.10
  4. Step 4: Simplify right side
    66,106.70x = 6,318,642,554.39
  5. Step 5: Solve for x
    x = 6,318,642,554.39/66,106.70
  6. Step 6: Final answer
    x = 95,582.48

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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.