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Finding the Fourth Proportional to 49,207,985.60, 73,811,978.40 and 49,207,985.60

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Solution

The fourth proportional to 49,207,985.60, 73,811,978.40 and 49,207,985.60 is: 73,811,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,207,985.60 : 73,811,978.40 = 49,207,985.60 : x
  2. Step 2: Convert to fraction form
    49,207,985.60/73,811,978.40 = 49,207,985.60/x
  3. Step 3: Cross multiply
    49,207,985.60x = 73,811,978.40 × 49,207,985.60
  4. Step 4: Simplify right side
    49,207,985.60x = 3,632,138,770,214,711.50
  5. Step 5: Solve for x
    x = 3,632,138,770,214,711.50/49,207,985.60
  6. Step 6: Final answer
    x = 73,811,978.40

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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.