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Finding the Fourth Proportional to 66,109,622.40, 99,164,433.60 and 66,109,622.40

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Solution

The fourth proportional to 66,109,622.40, 99,164,433.60 and 66,109,622.40 is: 99,164,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,109,622.40 : 99,164,433.60 = 66,109,622.40 : x
  2. Step 2: Convert to fraction form
    66,109,622.40/99,164,433.60 = 66,109,622.40/x
  3. Step 3: Cross multiply
    66,109,622.40x = 99,164,433.60 × 66,109,622.40
  4. Step 4: Simplify right side
    66,109,622.40x = 6,555,723,260,805,872
  5. Step 5: Solve for x
    x = 6,555,723,260,805,872/66,109,622.40
  6. Step 6: Final answer
    x = 99,164,433.60

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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.