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Finding the Fourth Proportional to 66,637,563.04, 99,964,433.04 and 18,768,507.04

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Solution

The fourth proportional to 66,637,563.04, 99,964,433.04 and 18,768,507.04 is: 28,155,038.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,637,563.04 : 99,964,433.04 = 18,768,507.04 : x
  2. Step 2: Convert to fraction form
    66,637,563.04/99,964,433.04 = 18,768,507.04/x
  3. Step 3: Cross multiply
    66,637,563.04x = 99,964,433.04 × 18,768,507.04
  4. Step 4: Simplify right side
    66,637,563.04x = 1,876,183,165,260,848.75
  5. Step 5: Solve for x
    x = 1,876,183,165,260,848.75/66,637,563.04
  6. Step 6: Final answer
    x = 28,155,038.68

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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.