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Finding the Fourth Proportional to 66,068.38, 99,027.84 and 32,811.40

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Solution

The fourth proportional to 66,068.38, 99,027.84 and 32,811.40 is: 49,179.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,068.38 : 99,027.84 = 32,811.40 : x
  2. Step 2: Convert to fraction form
    66,068.38/99,027.84 = 32,811.40/x
  3. Step 3: Cross multiply
    66,068.38x = 99,027.84 × 32,811.40
  4. Step 4: Simplify right side
    66,068.38x = 3,249,242,316.20
  5. Step 5: Solve for x
    x = 3,249,242,316.20/66,068.38
  6. Step 6: Final answer
    x = 49,179.99

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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.