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Finding the Fourth Proportional to 66,303.84, 99,456.84 and 62,939.28

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Solution

The fourth proportional to 66,303.84, 99,456.84 and 62,939.28 is: 94,409.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,303.84 : 99,456.84 = 62,939.28 : x
  2. Step 2: Convert to fraction form
    66,303.84/99,456.84 = 62,939.28/x
  3. Step 3: Cross multiply
    66,303.84x = 99,456.84 × 62,939.28
  4. Step 4: Simplify right side
    66,303.84x = 6,259,741,900.68
  5. Step 5: Solve for x
    x = 6,259,741,900.68/66,303.84
  6. Step 6: Final answer
    x = 94,409.95

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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.