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Finding the Fourth Proportional to 99,342,689.60, 149,184,069.60 and 53,993,057.60

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Solution

The fourth proportional to 99,342,689.60, 149,184,069.60 and 53,993,057.60 is: 81,082,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,342,689.60 : 149,184,069.60 = 53,993,057.60 : x
  2. Step 2: Convert to fraction form
    99,342,689.60/149,184,069.60 = 53,993,057.60/x
  3. Step 3: Cross multiply
    99,342,689.60x = 149,184,069.60 × 53,993,057.60
  4. Step 4: Simplify right side
    99,342,689.60x = 8,054,904,062,915,209
  5. Step 5: Solve for x
    x = 8,054,904,062,915,209/99,342,689.60
  6. Step 6: Final answer
    x = 81,082,001.05

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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.