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Finding the Fourth Proportional to 66,464,203.92, 99,731,431.04 and 47,158,198.00

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Solution

The fourth proportional to 66,464,203.92, 99,731,431.04 and 47,158,198.00 is: 70,762,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,464,203.92 : 99,731,431.04 = 47,158,198.00 : x
  2. Step 2: Convert to fraction form
    66,464,203.92/99,731,431.04 = 47,158,198.00/x
  3. Step 3: Cross multiply
    66,464,203.92x = 99,731,431.04 × 47,158,198.00
  4. Step 4: Simplify right side
    66,464,203.92x = 4,703,154,571,676,233
  5. Step 5: Solve for x
    x = 4,703,154,571,676,233/66,464,203.92
  6. Step 6: Final answer
    x = 70,762,219.27

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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.